Claim Construction Opinion Regarding Precast Concrete Double Tee Flanges

Posted on December 26, 2006 by R. David Donoghue

JVI, Inc. v. Universal Holdings, Inc., __ F.Supp.2d __ (N.D. Ill. Nov. 29, 2006) (Leinenweber, J.).

In this opinion Judge Leinenweber construed the claims of plaintiff's U.S. Patent No. 6,185,897 which covers an improved flange connector for precast concrete double tee members.  Of particular interest, the Court considered whether a specification including a single preferred embodiment limited the scope of the claims and discussed the claim differentiation doctrine.

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