Law Profs Urge Fed. Circ. To Narrow Assignor Estoppel Rule

By Jeff Montgomery (June 8, 2020, 11:06 PM EDT) -- Dozens of intellectual property law professors urged the full Federal Circuit on Friday to narrow a panel's finding that the sale of a patent holder's rights bars the former holder from challenging the validity of the same patent in district court under the assignor estoppel doctrine....

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