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EmeraChem Holdings, LLC v. Volkswagen Group of America, Inc.

EmeraChem Holdings, LLC (“EmeraChem”) appeals from a decision of the Patent Trial and Appeal Board (“Board”) that claims 1–14 and 16–20 of U.S. Patent No. 5,599,758 (“the ’758 patent”) would have been obvious over U.S. Patent No. 5,451,558 (“Campbell ’558”), Japanese Patent Application No. 62-106826 (“Saito”), and U.S. Patent No. 5,362,463 (“Stiles”). For the reasons set forth below, we affirm the Board’s decisions as to claims 1–2, 4– 14, and 17–19 and vacate and remand as to claims 3, 16, and 20.

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