Features

Nearly a century after endorsing the doctrine of assignor estoppel, the Court concluded that it applies "when, but only when, the assignor's claim of invalidity contradicts explicit or implicit representations he made in assigning the patent."

Features

The Supreme Court is considering a petition in a §101 case, in which the Federal Circuit split six-to-six in denying rehearing en banc, and in which the Supreme Court recently called for the views of the Solicitor General.

Columns & Departments

Federal Circuit, Citing Forum-Shopping, Transfers Patent Cases to California

Features

In a decision authored by Chief Justice Roberts, the Supreme Court ruled that the statutory scheme appointing PTAB administrative patent judges (APJs) to adjudicate IPRs violates the appointments clause of the U.S. Constitution.

Columns & Departments

Federal Circuit Rejects Theory of Infringement Based on Oversimplified Claim Interpretation and Finds That the ITC Correctly Required Proof of Substantial Non-infringing Use Based on Real-World Evidence Federal Circuit Reverses District Court's Decision Dismissing a Declaratory Judgment Action for Lack of Personal Jurisdiction Because the Patent Owner Directed Extensive Communications to the Judicial District

Features

Courts are increasingly excluding all evidence relating to post-grant proceedings before the PTAB, except when it is used for impeachment. This article reviews recent decisions on this issue from some of the nation's busiest patent districts.

Columns & Departments

Federal Circuit Invalidates Parts of VoIP Patent

Columns & Departments

Federal Circuit: The Doctrine of Equivalents Is Not a Binary Choice Federal Circuit: No Estoppel for Party That Joined IPR