Federal Circuit outlines scope of estoppel at PTAB
The US Court of Appeals for the Federal Circuit has held that a petitioner could rechallenge claims of a patent that it had previously asserted but had not been reviewed by the Patent Trial and Appeal Board (PTAB).
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15 January 2018 The US Court of Appeals for the Federal Circuit typically backs decisions from the Patent Trial and Appeal Board (PTAB) in appeals, according to data from US law firm Finnegan.