A previous post reported on GE’s patent infringement suit against AgiLight asserting several patents relating to LED string light engine structures and assembly methods.

In a recent decision the U.S. District Court for the Northern District of Ohio granted AgiLight’s motion for summary judgment on the remaining claims of two patents, U.S. Patent Nos. 7,633,055 (’055 Patent) (more…)

In an interesting case of ancillary legal wrangling, DuPont has filed a declaratory judgment (DJ) action asking an Oregon federal court to declare that the company’s press release and customer letters about its patent infringement suit against Heraeus Precious Metals (Heraeus) does not violate unfair competition laws.

The DuPont DJ complaint describes a dispute arising (more…)

Totaro & Associates has completed the second phase of a study which began in December 2010 on the patent landscape of the horizontal-axis, utility-scale wind industry. We have now read and classified over 23,100 global patents and applications, with over 3,200 issued patents in the US alone.

As we have highlighted in previous posts (here and (more…)

A previous post discussed Honeywell’s patent infringement suit against Nest Labs (Nest) asserting seven thermostat control patents. Since then Nest has requested that the U.S. Patent and Trademark Office (USPTO) reexamine all seven of the patents-in-suit.

A reexamination proceeding allows a third party to submit prior art to the USPTO in connection with a (more…)

Last October, Popular Mechanics reported that non-practicing entities (NPEs) may have “bled companies for half a trillion dollars” between 1990 and 2010. Sometimes called “patent trolls” by their detractors, NPEs are generally defined as companies that obtain most of their revenue from the licensing and/or enforcement of their intellectual property. (more…)

A previous post discussed Mitsubishi’s patent infringement action against GE in which the Japanese conglomerate fought back against multiple infringement suits (see, e.g., here and here) brought against it by GE.

Mitsubishi’s Complaint, filed in the Middle District of (more…)

Several green patent lawsuits have been filed in the last two weeks in the areas of smart grid, wastewater treatment, and emissions reduction technology.

In addition, the U.S. International Trade Commission decided to move forward with an important investigation regarding solar panel mounting (more…)

In previous posts I discussed the patent infringement suit brought by Danish biotech Novozymes against its rival Danisco (recently acquired by DuPont).

Specifically, Novozymes sued Danisco in May 2010 in the Western District of Wisconsin, alleging infringement of U.S. Patent No. 7,713,723 (’723 (more…)

Several new green patent complaints have been filed recently in the areas of biofuels, smart grid, LEDs, solar manufacturing materials, and waste water treatment. Here’s a run down:

Biofuels

Butamax Advanced Biofuels v. Gevo (more…)

In a previous post, I wrote about Texas smart meter company TransData‘s patent infringement suit against CoServ, a Texas utility.

TransData recently extended its patent enforcement activity from Texas in an easterly direction through the southeastern United States, filing complaints (more…)