Legal Opinion
Welker Bearing Co. v. PhD, Inc.
Court of Appeals for the Federal Circuit
Decided December 15, 2008No. 2008-1169PublishedCited by 51 opinions
1Opinion of the Court
RADER, Circuit Judge.
The United States District Court for the Eastern District of Virginia granted summary judgment of noninfringement of Welker Bearing Co.’s U.S. Patent Nos. 6,786,478 (“’478 patent”) and 6,913,254 (“'254 patent”) in favor of PHD, Inc. Welker Bearing Co. v. PHD, Inc., 528 F.Supp.2d 683 (E.D.Mich.2007) (“SJ Opinion ”). Because the district court correctly construed the critical claim element of the '254 patent as a means-plus-function limitation subject to 35 U.S.C. § 112 ¶ 6, and correctly found that PHD had not infringed the '478 patent after the issuance of that patent,…
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