On September 23, 2010, Eon filed suit against seventeen defendants in the District Court of the District of Delaware, alleging infringement of U.S. Patent No. 5,663,757. During the case, the '757 patent went through two...more
The U.S. Court of Appeals for the Federal Circuit, sitting en banc for the limited purpose of revisiting when claims invoke the means-plus-function language of 35 U.S.C. § 112, ¶ 6 (§ 112(6)) (now § 112(f)) replaced a part of...more
On June 16, 2015, the Federal Circuit revisited its prior precedent regarding when a claim limitation is subject to 35 U.S.C. § 112, paragraph 6. In Williamson v. Citrix Online, LLC, No. 13-1130 (“Citrix”), the en banc court...more