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Way Better Patents is publishing Weekly Box Scores on each week's patent grants.  We are covering how many patents are granted, the breakdown between Chemical, Electrical, Mechanical and Design patents.  We also look at the Global Indicators - the countries where the first names inventors hail from and the participation by different geographic regions of the worlds.

We are also publishing a business methods watch covering patents in Class 705, USPTO's primary business methods classification and a broader look at business methods covering the classes USPTO identified as alternative places to look for patents with business methods elements.

You can also sign up to have the box scores sent directly to your email box each week.

Please check them out and tell us what you think.

Coming to Terms | Way Better Patents

Coming to Terms | Way Better Patents

There is much discussion on shortening patent terms or creating patent terms by industry.  The dynamics of defining an industry and the boundaries between them would be daunting and take years.

Read our latest at waybetterpatents.com

Google's Latest Search Questions

As anyone working in the world of patents knows, the vast majority of transactions are shrouded in secrecy.  Transactions generally start with non-disclosure agreements and end with agreements with non-disclosure clauses.  From the real person of interest (lawyer speak for the person who really owns the patent) to the address of the owner, to the terms of a license agreement everything happens behind closed doors.

Enter Google, a firm that no doubt has signed its share of non-disclosure agreements while navigating the patentsphere.  The firm makes no secret of its outrage over the activities of patent assertion entities (PAEs).  In their latest comments on patent trolling and privateer business models sent to the Federal Trade Commission (FTC) it asks the FTC to investigate how these nefarious privateer business models operate.  Patent privateering is where a company that makes things - an operating company - teams up with a non-practicing entity (or creates an entity for that purpose) and then go after infringers rather than file infringement lawsuits themselves.  Here are the questions buried in the Google FTC comments:

• How prevalent is the outsourcing of patent enforcement by operating companies to PAEs?
• What types of arrangement have PAEs and operating companies consummated?
• What motivates these arrangements?
• What are the likely competitive harms and benefits of patent outsourcing?
• What are the competitive implications of the secrecy with which many PAEs conduct their operations?
• Do the particular terms of outsourcing arrangements indicate that operating companies are employing PAE proxies as competitive weapons?

Most of the questions can be answered with, wait for it, a Google Search.  

Some of the answers to the questions are obvious: What motivates these arrangements? Making money.  Having non-correlated assets turned into cash without having them impact the bottom line.

And some seem kind of disingenuous for a firm that dominates its market space and it behavior as it moves into new markets questions as monopolistic - Do the particular terms of outsourcing arrangements indicate that operating companies are employing PAE proxies as competitive weapons?

And while Washington is awash in sequestration commentary and vitriol on the effectiveness of government employees, it seems a little simple minded that Google and its commenting buddies (Red Hat, Earthlink, and Blackberry) to put forth such simplistic questions before an organization that put on one of the most sophisticated and informed discussion on the subject matter as part of it's December 10th 2012 Patent Assertion Entity Workshop with the Justice Department.  Did Google send anyone?  Its was a veritable who's who of the Patent Bar (and a fashion parade for litigation wear and red ties.)  Blackberry doesn't discuss its purchase of the patents held by the Multimedia Patent Trust or it's pre-Google purchase of the mobile assets of Motorola, of the peace treaty between BBBY and MOTO.  Red Hat and Microsoft engaged in its own not dance on Linux related patents documented in Burning the Ships.  Earthlink has its own NPE stories.

As a very expensive subscription to Intellectual Asset Management and some pretty easy  Google searches reveal, the privateer business model is on the move and other PAE business models are here to stay.  

Business Methods Mash Up

Today we bring you the Business Methods Clean Tech Community Mashup.

A “System and method for building a green community” was patented in mid-January 2013. The business method invention was granted to Nancy Lynne Welsh (Raleigh, NC). Welsh’s invention, protected by US 8,355,995, is for

“a system and method for building a green community construction. The system and method may comprise preparing a site for green community construction, acquiring housing for the site, wherein the housing is acquired below assessed value, moving the housing to the site, and remodeling the housing at the site to form the green community.”

The key features in the patent’s claims are listed below.

1. A computer-implemented method for managing green housing community construction, wherein the method is executed by at least one programmed computer processor which communicates with at least one client via a network, the method comprising:
   • coordinating preparation of a site for green housing community construction
   • processing acquisition of existing housing for the site, wherein the existing housing is acquired below assessed value, and the existing housing is slated for demolition
   • scheduling transfer of the existing housing to the site
   • managing remodeling of the existing housing at the site to form the green housing community
2. receiving one or more permits for site construction
3. receiving funding for site construction
4. performing foundational work for the site
5. searching for housing based on at least one of location, value, type, size, and provider
6. performing at least one of assessments and inspections on the housing
7. determination of acceptable housing for the site
8. determining one or more move routes for transporting the housing from an original site to the site for green housing community construction [Editor’s note: how disruptive will moving enough houses from dispersed locations to create the ‘green community’ be?]
9. acquiring unwanted materials from the original site for reuse, wherein the unwanted materials comprise at least one of brick, asphalt, wood, shrubbery, and recyclable materials
10. remodeling is achieved in at least one of the following: foundational remodeling, exterior remodeling, interior remodeling, and community remodeling
11. using at least one of recyclable materials, energy-efficient materials, and green-building approved materials
12. A computer readable medium encoded with computer executable instructions to perform the acts of the method of claim 1. [Editor’s note: this claim and its phrasing help the inventor meet machine-or-transformation tests necessary for business methods patenting. This is software and the hard-drive it runs on.]
13. A computer-implemented system for green housing community construction … [Editor’s note: similar to claim 1 contents, but this covers the software, server, and client system; again, needed to qualify for business methods status.]
14. A method for transforming a plurality of houses initially situated in different locations and slated for demolition into a green housing development solely formed from the plurality of houses …
    • preparing a development site
    • defining a plurality of criteria for the houses, including the distance and route from a present location of the house to the development site, the maximum width and height of the house, and the cost of the house
    • searching for and identifying existing houses that are slated for demolition and that meet the plurality of criteria
    • effecting the transfer of ownership of the houses
    • transporting each of the houses from its present location to the development site
    • installing each of the houses on a foundation
    • remodeling using green construction methods
15. The method of claim 14, further comprising: hiring at least one disadvantaged person to perform the remodeling, wherein the disadvantaged person is a homeless person, an at risk youth, or a person with a criminal record; training the disadvantaged person to perform the remodeling; and providing a ongoing, customized work mentor program for the disadvantaged person.
16. criterion for cost is that the house is donated [refers to cost in claim 14]
17. installing computers and wireless access in the houses at the development site

The problem Welsh is trying to solve is discussed in the patent’s specification:

"Buildings have a profound effect on the environment. … Although green building in residential sectors is receiving increased attention due to environmental issues such as global warming, rising energy prices, and indoor air quality issues, there continues to be high number of residential tear-downs in or near larger cities across the United States with no environmentally viable replacement strategies currently available. In addition, costs associated with green building are often significantly higher than conventional construction. For example, green construction may be 5% to 20% more expensive than conventional construction. Furthermore, designs and plans for green construction do not typically include a comprehensive and integrated approach for using recycled housing, guidelines for using such materials, and strategies for continued neighborhood development. 

As a result, there are significant problems and shortcomings associated with current building techniques. Therefore, a system and method for constructing a green community using recycled housing, implementing custom guidelines for using such materials, and/or continuing neighborhood development would be highly desirable."

We’ve written about business methods, software patents, and clean tech applied to building construction and housing in past posts. Additional information on business methods patents may be found here.

Time will tell whether or not this approach to community construction has any commercial viability. Perhaps it is a modern-day version of the numerous utopian communities that were attempted in the 1800s?

But another question given how residential real estate works is whether this is novel and whether this is patentable.  We'll see.

Patent Resources -- The List of IP Acronyms

Acronyms -- The alphabet soup of intellectual property — acronyms, abbreviations, and more. Words formed from the initial letters of other words — like FRAND - Fair, reasonable and non-discriminatory - how royalties are determined for standard essential patents.

Wayfinder Digital maintains a list of the meanings of the acronyms as they relate to intellectual property.  Here PCT means Patent Cooperation Treaty, not to be confused with percentage; Primary Care Trust (the UK National Health Service) or porphyria cutanea tarda, a form of photosensitive skin disease.  AU means Art Unit in patent speak though depending on the patent domain it can also be a dense, soft, shiny, malleable and ductile metal and the atomic number 79 - GOLD.

Use the list to throw around the acronyms like the rest of the patent cognoscenti or to figure out what they are taking about.

Wayfinder Digital has a variety of patent information tools designed to make information about patents more accessible and easier to understand.   From time to time we post updates on these tools here.

PBR – Rubber, Not Beer

Source: http://upload.wikimedia.org/wikipedia/commons/c/c6/1,3-Butadiene_Polymerization.PNG

It was always curious  the fear that college organic chemistry engendered in students. Yes, it could wrap your brain around the axle learning the various bond types, transition states, and compound-naming conventions, but come on, gang, it’s fascinating!

A recent posts featured a photo of a stack of tires. The Rubber Manufacturers Association estimates that 292 million tires weighing a total of 4.9 million tons, were scrapped in the US in 2009. The largest percentage of these (40.3%) were disposed of as tire-derived fuel, with the next largest category being ground rubber. For this end-use, molded and extruded products, sports surfacing, playgrounds/mulch/animal bedding, and automotive uses were the descending order of uses. The RMA also estimates that 162 million new tires were manufactured in the US in 2012.

A common thread between tires and your car, the roads you drive on, the tennis courts you play on, surgeries or medical implants and devices you might be treated with, and that evil-of-evils (not!), hydraulic fracturing (aka fracking), is polybutadiene rubber (PBR). Polybutadiene is a polymer (a chemical compound or mixture of compounds consisting of repeating structural units – proteins, DNA, and the polystyrene found in styrofoam are polymers.) first polymerized by Russian chemist Sergei Vasilyevich Lebedev in 1910. The compound is highly wear resistant, and about 70 percent of its production is used in tire manufacture.

Electrically conducting tires

One of the most recently issued patents related to the use of PBR in tires is US 8,376,005, “Pneumatic tire.” It was granted in February 2013 to Norihiko Nakamura (Osaka, Japan) and assigned to Toyo Tire & Rubber Co., Ltd., also of Osaka. His abstract summarizes the invention:

“A pneumatic tire that can be manufactured according to the conventional method without requiring special tire manufacturing steps and without needing addition of material members and production steps, has excellent rolling resistance and wet properties, and has conductivity. A pneumatic tire has a side wall contacted with a rim strip of a bead part and extended outward in a radial direction of a tire from the bead part to be coupled to a ground contact edge region of a tread part, the side wall comprising a two-layer structure of an internal layer rubber and an outer layer rubber, characterized in that on the circumference of unilateral or bilateral part of the tire, the rim strip and either the internal layer rubber or the external layer rubber of the side wall are formed into a continuous conductive path by a conductive rubber material, only the conductive path is used as a conducting path of the tire, and members other than the conductive path are selected and used from a conductive rubber material or a nonconductive rubber material.” Drawing references deleted for clarity.

As is common in modern tires, silica is used in the tread rubber. This leads to a problem, however: “With this silica compounding technology, static electricity charged in vehicles gives rise to the problems that discharge phenomenon is generated when a tire passes on manholes and the like, resulting in radio noise, adverse influence to electronic circuit parts, generation of short-circuit, and the like.”

Nakamura solves this static electricity problem by including a conductive rubber material in the tire tread. That conductive layer contains polybutadiene rubber.

Tires in your roads

“Asphalt rubber is the largest single market for ground rubber, consuming an estimated 220 million pounds, or approximately 12 million tires,” according to the USEPA. Ground tire rubber (including the PBR found in tires) can be blended with asphalt to provide longer-lasting road surfaces, reduced maintenance, lower road noise, and shorter braking distances.

Lance Allan and Jim Farnell (both of Santa Fe Springs, CA) have received one of the most recent patents related to rubber-containing asphalt – US 8,377,190, “Methods and arrangement for creating asphalt emulsion,” issued in February 2013. They provide “[a] method for creating asphalt emulsion …. The method includes heating a base asphalt. The method also includes injecting the base asphalt into a colloid mill. The method further includes breaking up the base asphalt into small particles. The method yet also include preparing a soap solution, wherein the soap solution includes an acid, water, and a first emulsifier, wherein the first emulsifier is an alkyl amines salt based emulsifier. The method yet further includes combining the small particles of the base asphalt with the soap solution to create the asphalt emulsion.” Their claim 6 specifies that the “base asphalt is a tire-rubber-modified asphalt”.

We considered pothole repair last year.

Athletic courts, concert stages

David Barlow (Seminole, FL) received US 8,266,857 in September 2012 for his invention “Interlocking floor system with barbs for retaining covering.” He provides “[a] flooring system includ[ing] multiple polymeric panels that are interlocked into a floor system and then covered with a material such as carpet and artificial turf. A top surface of the polymeric panels includes barbs to hold the material from moving laterally during use.” He envisions that his floor covering can be used on basketball courts, concert stages, as the finished surface for athletic courts, or as an underlayment for tennis courts or lawn bowling areas. The rubber in the panels “can include structural foam and processed recycled automobile tires mixed in a bonding agent.”

PBR in medicine

The synthetic rubber polybutadiene plays a role in the medical device industry. A recent invention in this art is US 8,303,973, “Multifunctional compounds for forming crosslinked biomaterials and methods of preparation and use,” granted in November 2012 (on Election Day, to be precise) to George Y. Daniloff and co-inventors and assigned to Angiotech Pharmaceuticals (US), Inc. (Seattle, WA). Daniloff et al.’s abstract states:

“Multifunctional compounds are provided that readily crosslink in situ to provide crosslinked biomaterials. The multifunctional compounds contain a single component having at least three reactive functional groups thereon, with the functional groups selected so as to be non-reactive in an initial environment and inter-reactive in a modified environment. Reaction of a plurality of the multifunctional compounds results in a three-dimensional crosslinked matrix. In one embodiment, a first functional group is nucleophilic, a second functional group is electrophilic, and at least one additional functional group is nucleophilic or electrophilic. Methods for preparing and using the multifunctional compounds, and kits including the multifunctional compounds are also provided. Exemplary uses for the multifunctional compounds include tissue augmentation, biologically active agent delivery, bioadhesion, and prevention of adhesions following surgery or injury.”

Polybutadiene is one of the ‘multifunctional compounds’.

Rubber in fracking fluids

We’ve considered in past posts the process of hydraulic fracturing and inventions related to various aspects of this process that is re-defining natural gas production, especially in the US. You can find them by searching here. A review of hydraulic fracturing fluid is here.

A team of Schlumberger Technology Corporation inventors led by Evgeny Barmatov were granted US 8,141,637, “Manipulation of flow underground”, in March 2012. Their invention relates to placement of propane in a formation, or to blocking unwanted flow paths in the underground rock. Their abstract states:

“Solid material required at a subterranean location is supplied from the surface suspended in a carrier liquid and agglomerated below ground by means of a binding liquid. To achieve agglomeration, the binding liquid and the particulate solid are similar to each other but opposite to the carrier liquid in hydrophilic/hydrophobic character. The solid and the binding liquid may both be hydrophobic while the carrier liquid is hydrophilic, or vice versa. The solid may be hydrophobically surface modified to render it hydrophobic. The binding liquid may be provided as a precursor which converts to the binding liquid below ground to trigger agglomeration after arrival at the subterranean location. The agglomerates may function as proppant heterogeneously placed in a fracture of a reservoir, or may serve to block an unwanted path of flow. The binding liquid may polymerise after agglomeration so as to stabilise and strengthen the agglomerates.”

According to claim 17, “the binding liquid undergoes polymerisation after the agglomeration has taken place.” The patent’s Specification clarifies that the binding liquid can contain polybutadiene - that same compound found in your tires.

PBR in fracking well cement

When oil and gas wells (including those used for hydraulic fracturing) are drilled, a long length of pipe (the casing) is placed in the wellbore and a cement slurry is then placed between the casing and the surrounding rock formation. Many factors determine the composition of the cement slurry (this is not like mixing a sack of concrete to fix your sidewalk or patio), including slurry density, rheology, pump time, fluid loss, settling and gas migration mitigation during placement and compressive strengths for long term performance, according to inventors B. Raghava Reddy and Krishna M. Ravi. They were granted US 7,913,757, “Methods of formulating a cement composition,” in March 2011. Their patent is assigned to Halliburton Energy Services. Inc.

Reddy and Ravi provide “[a] method of cementing a wellbore in a subterranean formation, comprising formulating a cement composition that may be suitable for long-term zonal isolation of the subterranean formation by evaluating a subterranean formation, preparing a base cement composition, determining the compressive strength of the base cement composition, determining the tensile strength of the base cement composition, and adjusting the ratio of compressive strength to tensile strength as need to within a first optimizing range to form a first optimized cement composition, and placing the optimized cement composition in the wellbore.” To adjust the strength of the slurry mixture they incorporate “an elastomer, a rubber” or a combination. One of the rubber compounds they specifically claim (claim 13) is cis–1,4-polybutadiene rubber - the same PBR used in tires.

Technologies cross

These inventions are examples of the cross-cutting nature of technology and how a given material, compound, process, or mechanism can be used across a very wide range of art. In addition, the nature of innovation is such that it is unpredictable, although much effort is spent on the part of industry to try to determine future innovation trends, in part from looking for “holes” in existing patterns of inventions (this is known as whitespace or gap analysis). A compendium of recent advances in clean technology can be found in Wayfinder Digital’s Green Tech Discovery and Analysis report.

A Bonus

You, your kids, or parents (or grandparents for that matter. Now that is stunning.) may have enjoyed using this PBR-based product. A hint – it hit the market in the mid–60s, and it has a resilience factor greater than 90%, which is a huge part of its appeal.

Road Trip!! - Tire Tech

As of mid-February 2013, US gasoline prices have risen every day for more than a month. At a time when food prices continue to escalate (while package sizes, weights, and volumes decrease) and workers receiving paychecks notice a significant hit due to the expiration of the "payroll tax holiday", what are budget-conscious families to do? Not to be pessimistic, but do the best we can.

Innovations in vehicle tire technology, including monitoring and maintenance, help to increase auto and truck fuel economy. A recent New York Times article discussed some of the approaches being taken to improving traction while at the same time reducing the rolling-resistance of tires, which in turn leads to greater fuel economy. RubberWorld reports that the global demand for tires is expected to reach 3.3 billion units in 2015. The potential fuel cost associated with the rolling resistance, and improper inflation, of that many new tires (not to mention the existing ones that won’t be replaced that year) is huge. We offer a brief survey of tire technology that can help mitigate increased fuel costs.

They’re not just rubber

Tire technologists have worked to modify the formulation of the rubber and other compounds used in vehicle tires since pneumatic rubber tires were invented in the 1800s. Silica (the major component of quartz sand) added to tire rubber serves as a reinforcing agent and helps to reduce the rolling resistance of tires. A recent invention related to tire rubber composition including silica is US 8,336,591, “Pneumatic tire with rubber component containing carboxymethylcellulose [CMC],” issued on Christmas Day 2012 to Klaus Unseld (Luxembourg) and co-inventors and assigned to The Goodyear Tire & Rubber Company (NASDAQ: GT) (Akron, OH). Unseld et al. not only use silica in their formulation, but also incorporate carboxymethylcellulose:

“The present invention is directed to a pneumatic tire comprising at least one component, the at least one component comprising a rubber composition, the rubber composition comprising: at least one diene based elastomer; and a reinforcing amount of at least two fillers comprising carboxymethylcellulose and at least one of silica and carbon black.”

They point out that “the use of renewable materials as reinforcement in rubber compounds in place of carbon black and silica is desirable from an environmental standpoint.”

You’ve encountered CMC in your daily activities. It is used:

• As a thickener and emulsion stabilizer in various products including ice cream
• Personal lubricants, toothpaste, laxatives, diet pills, water-based paints, detergents, textile sizing, and various paper products
• In laundry detergents
• As a lubricant in nonvolatile eye drops (artificial tears)
• In pharmaceuticals as a thickening agent
• In the oil-drilling industry as an ingredient of drilling mud, where it acts as a viscosity modifier and water retention agent
• In ice packs to form a low freezing point mixture providing more cooling capacity than ice
• To aid in tartrate or cold stability in wine, which can reduce electricity consumption for chilling wine in warm climates.

And now found in clean tech tires that increase your gas mileage.

They’re not just tires, they’re computer peripherals

Just when you wondered how much more expensive and complicated cars can get, and how little of a modern automobile you, the owner/operator can service yourself, come complex new millennium tire inventions.

Robert Angelo Fiore (East Longmeadow, MA) patented and retained the rights to US 7,066,226, “Fuel efficient vehicle tire having a variable footprint and low rolling resistance”, issued in June 2006. Fiore invented a system of active tire tread, connected to a computer-based tire control system, in which

“the ground-contact surface area is variable as a portion of the tread part can be retracted and/or extended using pneumatic, mechanical or hydraulic force to withdraw from, or come into contact with the road surface before, during or after operation permitting more efficient operation wherein the material used within the tread part that retains contact with the road may generally have a smaller internal friction loss than the material used in conventional tires and the rolling resistance is thereby reduced when the retractable portion of the tread is selectively withdrawn from contact with the road surface furthermore achieving a smaller ground-contact patch footprint.”

After reading that you’ll be glad to know that the tire also reduces interior and exterior noise and provides a “reduced tendency to exhibit hydroplaning action.”

No more stops at the gas station air pump

According to the US Department of Energy, “You can improve your gas mileage by up to 3.3 percent by keeping your tires inflated to the proper pressure. Under-inflated tires can lower gas mileage by 0.3 percent for every 1 psi drop in pressure of all four tires.” Automated tire inflation systems are one approach to maintaining proper tire pressure. The most-cited US patent (based on the title) in this technology is US 4,431,043, cited 41 times by more recent patents. “Automatic tire inflation system” was invented by Fred Goodell (Grosse Ile, MI) and Michael Ellison (Canton, MI), granted on Valentine’s Day 1984, and assigned to AM General Corporation (Detroit, MI). The company has “a legacy dating back to America’s first 4-wheel drive utility vehicle - the Willys Jeep of World War II – AM General is best known today for its global leadership in the design, production and support of the High Mobility Multi-Purpose Wheeled Vehicle (HMMWV or Humvee) … .” The invention provides “[a]n automatic tire inflation/deflation system for a vehicle … . Air passageways for the pressurize air are provided internally through the wheel assemblies without cutting into load bearing members. A rotating seal is provided by way of a pair of sealing rings located inboard of the hub bearings to protect the seals from adverse environmental conditions. A kit for retrofitting vehicles to include an automatic tire inflation/deflation system” is also provided. The focus of the invention is toward military vehicles, but the technology can also be found in commercial applications.

This is not the earliest patent for this technology, however. Arthur W. Stonestreet (Pasadena, CA) received US 1,338,337, “Automatic pneumatic, pneumatic-tire-inflating mechanism,” in April 1920. He stated that “[t]his invention relates to the automatic inflation of pneumatic tires and the object of my invention is to provide means for automatically the tire while in motion.”

And what about tire pressure monitoring? A recent patent, US 8,326,480, “Method and device for monitoring the state of tires,” was granted in December 2012 to Andreas Kobe (Bensheim, Germany) and co-inventors and assigned to Continental Teves AG & Co. oHG (Germany). It provides for measuring variables such as wheel speed, wheel rolling circumference and determining tire pressure from calculations based on these factors. We should note that this patent has been classified by USPTO as a software patent. Good? Bad? Shouldn’t have been granted? Perhaps the inventors’ statement of purpose, expressed in the Field of Invention section, sheds some light for those that desire software patents to be eliminated:

“… systems which contribute to active or passive protection of the vehicle occupants are being increasingly used. Systems for monitoring the tire pressure protect the vehicle occupants against injury which would otherwise be caused, for example, by an abnormal tire pressure. An abnormal tire pressure can, for example, increase the wear of the tire and the consumption of fuel, or a tire defect (’flat tire) may occur.”

But again, as with automated tire inflation systems, it’s been done before. In January 1920, Louis Anderfuhren (Baltimore, MD) probably celebrated his receipt of US 1,327,416, “Pneumatic-tire alarm.” He wrote:

“This invention relates to devices applicable to pneumatic tires used on motor vehicles, and operating to give warning when the tire becomes deflated to such an extent that it is liable to be damaged if the driver continues to run the car.”

Basically, the invention was for a bell and clapper mounted on the car wheel in such a way that when the tire begins to deflate, the clapper is actuated via a spring and rings the bell. This would have worked to gain the driver’s attention in an age without in-car radios, sound systems, multi-megawatt woofers, iPods, cell phones, and in-car entertainment systems.

Daddy, what’s that little light mean?

Per the USDOE, tire pressure affects gas mileage. Akihiro Taguchi (Obu, Japan) provides a “Device for displaying fuel efficiency degradation amount based on tire air pressure”, issued in March 2009 and assigned to DENSO Corporation (T: 6902) (Kariya, Japan). US 7,501,940 is a succinct invention with only two claims, describing

“A fuel efficiency degradation amount displaying device detects a tire air pressure and calculates an amount of degradation of fuel efficiency of the vehicle compared to fuel efficiency in a case that the tire air pressure is appropriate. Then the fuel efficiency degradation amount displaying device indicates not only a warning of the decrease of the tire air pressure but also the amount of the fuel efficiency degradation. Therefore the driver can recognize the amount of the degradation clearly and intuitively. As a result, it is possible to prevent drivability of the vehicle from getting worse, because the driver can adjust, knowing a relation between the tire air pressure and the fuel efficiency, the tire air pressure to the appropriate tire air pressure.”

Taguchi was beaten to the punch by Vernen E. Rouch and Willim J. Abbott (Fulton, IN) in their December 1927 patent, US 1,652,733, “Electrical tire-pressure indicator.” From their patent:

"The present invention relates to an air pressure indicating device to be employed in connection with pneumatic tires of motor vehicles for signaling to the operator when the air pressure within a tire has reached a dangerously low degree.

Another important object of the invention is to provide a device of this character which may be readily and easily installed on motor vehicles now in use, eliminating the necessity of making alterations in the motor vehicle construction to accomplish installing of the device.

Another object of the invention is to provide a device which will be purely automatic in its operations and one which is electrically controlled."

Did you think that electrical, automated tire pressure indicators were a relatively recent innovation?

Your tire pressure dictates your route

We’ve looked at tire compound formulations, active tires, automated tire pressure, and tire indicators. Want to get the best fuel economy for the route you would have taken on a road trip had gas prices been lower and you had more disposable income after paying for groceries, medical visits and insurance, utilities, and increased taxes? Peter G. Hartman (Bloomfield, MI) provides help for that in US 8,374,781, “Method for vehicle route planning,” issued in February 2013 and assigned to Chrysler Group, LLC (Auburn Hills, MI). The invention gives:

“A method of planning a vehicle route includes estimating fuel requirements of identified alternative routes or route segments using navigation, vehicle, and powertrain information. The method also includes displaying for a vehicle operator a list of alternate routes that features either absolute or relative values representative of such estimated fuel requirements. The method further includes adapting values used to estimate fuel requirements based upon current powertrain operating parameters, and alerting the vehicle operator when actual vehicle fuel economy along a selected route varies significantly from the estimated fuel requirement.”

Tire rolling resistance is one of the factors that is included in the calculations. Further, the inventor considers this to be a clean tech invention:

“a vehicle’s electronic navigation system utilizes navigation information and vehicle and/or powertrain information to identify one or more routes that a vehicle operator may take to arrive at a desired destination which achieves increased vehicle fuel economy, i.e., that will use less fuel, or that results in reduced vehicle emissions, e.g., reduced CO2 emissions.”

Hartman and Chrysler did not take advantage of accelerated examination under the USPTO’s Green Tech Pilot Program, which probably would have reduced the pendency of this invention, and thus time-to-market for this Chrysler product. Oh yes, this one is a clean tech software patent too.

Everything old is new again

Inventors continue to innovate to address actual and perceived societal needs. Many of the clean tech inventions we now see are incremental changes to old technology, taking advantage of new materials, processes, and supporting technologies. This is not bad, in fact, it is completely consistent with the history of invention. There are few truly disruptive, transformative, ex nihilo inventions; most are incremental, moving forward in fits-and-starts, and build on past innovations. There is a higher degree of convergence – different technological systems that evolve toward performing similar tasks – like the iPad is a portable computer is a camera is a digital recorder is an ebook reader is a portable movie theater is a portable music library and stereo is a portable photo album. Like that.