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The Doctrine Of Equivalents And Claiming The Future After Festo, Joshua Sarnoff Jan 2004

The Doctrine Of Equivalents And Claiming The Future After Festo, Joshua Sarnoff

College of Law Faculty

In two recent cases, Warner-Jenkinson Co. v. Hilton Davis Chemical Co., 520 U.S. 17 (1997), and Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co., 535 U.S. 722 (2002), the Supreme Court unanimously approved of the modern doctrine of equivalents articulated in Graver Tank & Manufacturing Co. v. Linde Air Products Co., 339 U.S. 605 (1950). The Court also extended equivalents protection to later-arising technologies and imperfectly reconciled the modern doctrine with the doctrine of prosecution history estoppel for amended claims. The Court's new doctrine conflicts with historic implied-disclaimer standards. The U.S. Court of Appeals for the Federal Circuit has further …


Comment, Calvin P. Griffith Jan 2004

Comment, Calvin P. Griffith

Case Western Reserve Law Review

No abstract provided.


Practitioner Perspective On The Law Of Inequitable Conduct, Claim Construction, And The Doctrine Of Equivalents, Edward V. Filardi, Mark D. Baker Jan 2004

Practitioner Perspective On The Law Of Inequitable Conduct, Claim Construction, And The Doctrine Of Equivalents, Edward V. Filardi, Mark D. Baker

Case Western Reserve Law Review

No abstract provided.


The Comment: The Impact Of Major Changes By The Federal Circuit In The Law Affecting Claim Scope, Gerald Sobel Jan 2004

The Comment: The Impact Of Major Changes By The Federal Circuit In The Law Affecting Claim Scope, Gerald Sobel

Case Western Reserve Law Review

No abstract provided.


The Doctrine Of Equivalents And Claiming The Future After Festo, Joshua D. Sarnoff Dec 2003

The Doctrine Of Equivalents And Claiming The Future After Festo, Joshua D. Sarnoff

Joshua D Sarnoff

In two recent cases, Warner-Jenkinson Co. v. Hilton Davis Chemical Co., 520 U.S. 17 (1997), and Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co., 535 U.S. 722 (2002), the Supreme Court unanimously approved of the modern doctrine of equivalents articulated in Graver Tank & Manufacturing Co. v. Linde Air Products Co., 339 U.S. 605 (1950). The Court also extended equivalents protection to later-arising technologies and imperfectly reconciled the modern doctrine with the doctrine of prosecution history estoppel for amended claims. The Court's new doctrine conflicts with historic implied-disclaimer standards. The U.S. Court of Appeals for the Federal Circuit has further …