MHL Tek, LLC v. Nissan Motor Co., No. 10-1287 (Fed. Cir. 2011)
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The company filed suit against numerous automobile manufacturers for infringement of three patents relating to tire pressure monitoring systems. The patent applications were filed in the 1990s and, in 2007, the inventors signed documents purporting to assign the patents to the company. The district court entered summary judgment of non-infringement of one claim and dismissed the others for lack of standing, based on a prior assignment. The court concluded that the claims at issue were not subject to an exclusion under an earlier assignment by the inventors. The Federal Circuit affirmed in part, holding that the company lacked standing with respect to all of the patents.
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