parallel litigation : CAFC Alert

If at first you don’t succeed ….

Darrin Auito | May 18, 2012

In Re Baxter International, Inc.

(Reexamination No. 90/007,751)

May 17, 2012

Panel: Newman, Lourie, Moore.  Opinion by Lourie.  Dissent by Newman

Summary

The CAFC’s decision in In re Baxter Int’l, Inc. (Fed. Cir. 2012) highlights the distinction between a reexamination and a district court proceeding.  Specifically, the CAFC affirmed the Board of Patent Appeal and Interferences (“Board”) determination in a reexamination proceeding that claims 26-31 of U.S. Patent No. 5,247,434 (“the ‘434 patent”) are invalid – despite having previously held in a parallel litigation proceeding that the same claims were not invalid – because the courts and the USPTO use different standards to address validity.  However, the CAFC cautioned that had the claims been found to be invalid in the litigation proceeding after all appeals had been exhausted, then the PTO “ideally should not arrive at a different conclusion” during a parallel reexamination proceeding when presented with the same arguments.


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