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Brief Of Patent Law Professors As Amici Curiae In Support Of Petitioners, Christa J. Laser

Law Faculty Briefs and Court Documents

This Court should reverse the Federal Circuit and hold that IPR estoppel extends only to grounds that were raised or could have been raised during the IPR proceeding. Estoppel would therefore extend to instituted grounds, whether raised during the proceeding or not. Estoppel would not extend to uninstituted grounds, such as grounds which might have been challenged in the petition for review but were not.

Equitable Defenses In Patent Law, Christa J. Laser

Law Faculty Articles and Essays

In patent law, “unenforceability” can have immense consequences. At least five equitable doctrines make up the defense of “unenforceability” as it was codified into the Patent Act in 1952: laches; estoppel; unclean hands; patent misuse; and according to some, inequitable conduct. Yet in the seventy years since incorporation of equitable defenses into the patent statute, the Supreme Court has not clarified their reach. Indeed, twice in the last four years, the Supreme Court avoided giving complete guidance on the crucial questions of whether, and when, such equitable defenses are available to bar damages in cases brought at law.

Several interpretive …

The Scope Of Ipr Estoppel: A Statutory, Historical, And Normative Analysis, Christa J. Laser

Law Faculty Articles and Essays

When Congress implemented inter partes review (IPR) and other patent post-grant proceedings through the passage of the America Invents Act (AIA) in 2011, it provided that petitioners would be estopped in later proceedings from raising grounds for invalidity that they "raised or reasonably could have raised during that inter partes review." 35 U.S.C. § 315( e )(2). However, substantial uncertainty in courts' interpretation of this provision causes an enormous impact on an accused patent infringer's decision of whether and on what grounds to petition for review. One reading of the statutory estoppel provision suggests that "during that inter partes review" …