Customer Suits Alone Do Not Confer Declaratory Judgment Jurisdiction

DataTern, Inc. sued Microsoft’s and SAP’s customers alleging infringement of U.S. Patent Nos. 5,937,402 and 6,101,502.  Microsoft and SAP then brought actions against DataTern seeking declaratory judgments of non-infr… Read More

Pleading Implied License as an Affirmative Defense to Patent Infringement

An implied license is an affirmative defense to patent infringement. Because the defense is, by definition, highly fact-specific, it is not always clear what allegations are required to adequately plead the implied license defense… Read More

When Can a Patent Owner Sue for a Declaratory Judgment?

Does jurisdiction exist over a declaratory judgment action (i.e., is there a case or controversy) where the plaintiff alleges that a party’s possible future use of software would infringe patent claims?  The court in Auburn… Read More

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PTAB Practice: Recent Developments in Estoppel
November 21, 2019 at 12:00 pm EST
There are a wide range of estoppel issues that may be triggered under the America Invents Act (AIA) as a result of proceedings before the Patent Trial and Appeal Board (PTAB).  These estoppel issues complicate decision making in pursuing parallel pr…Register

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