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Invalidity Challenges May Star Simple Words–Reading of 'Command Function' Doomed Obviousness Dispute | Manatt, Phelps & Phillips, LLP

In Comcast Cable Communications, LLC v. Promptu Systems Corp., 1 the Federal Circuit held that the plain meaning of the claim phrase โ€œcommand functionโ€ was limited to functions that command an action to be taken. The meaning of this claim phrase turned out to be a focal point, and Comcast lost its invalidity challenge to the claims as a result of this interpretation. Comcast filed a petition for inter partes review (IPR) of U.S. Patent No. 7,260,538 (the โ€™538 patent) on the grounds that...
Phelps Phillips Promptu Systems Corp Cisco Sys Inc Comcast Cable Communications Patent Office Promptu Systems Corporation

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