Full Fed. Circ. Is Urged To Rehear Car Part Patent Row

By Grace Dixon (September 8, 2021, 5:54 PM EDT) -- Ingevity Corp. is arguing in a bid for rehearing that the Federal Circuit erred when it used a new line of reasoning to affirm a trade agency's ruling that MAHLE Filter Systems North America Inc. and two affiliates didn't infringe Ingevity's car emission filter systems because the patent was invalid....

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