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Collateral Estoppel Causes PTAB to Reverse Course and Institute IPR

The Patent Trial and Appeal Board granted a request for rehearing and instituted inter partes review of a web browsing patent in order to reconcile an inconsistency with a final judgment of un-patentability in the IPR of a...more

In IPR, No Collateral Estoppel Based on § 101 Ruling in District Court

A panel of the Patent Trial and Appeal Board instituted inter partes review of a patent, rejecting the patent owner’s assertion that the petitioner’s obviousness arguments were collaterally estopped by a district court’s...more

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