Eastman Wins Patent Infringement Case

The U.S. District Court in Wilmington, DE has ruled in favor of Eastman Chemical in a patent infringement lawsuit filed by Wellman. The court’s decision that held two Wellman patents invalid ended the case, which was scheduled to go to trial February 17.   Wellman filed a lawsuit against Eastman in September 2007, alleging that Eastman's ParaStar polyethylene terphthalate (PET) resins, which are made from the company's IntegRex process, infringed on two Wellman patents. The ruling confirms that Eastman continues to be free to practice its independent...

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