Estoppel Will Decide Impact Of PTAB's Anti-Redundancy Push

By Matthew Bultman (May 31, 2019, 8:35 PM EDT) -- With a recent decision rejecting Comcast's challenge to a Rovi patent as redundant, the Patent Trial and Appeal Board has given companies another hurdle to consider when weighing whether to ask for review of a patent. But how courts answer questions about estoppel could determine just how much impact the decision will have....

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