Smith International, Inc. v. Kennametal, Inc.

MEMORANDUM OPINION

DOWD, District Judge.

Before the Court is the defendant’s motion for partial summary judgment against the plaintiffs under Fed.R.Civ.P. 56(c). Defendant argues that plaintiffs’ United States Letters Patent No. 4,201,421 is invalid under 35 U.S.C. § 102(b) on grounds that “[tjhere was a public use or sale in this country of the wear sleeve bit claimed in the ’421 patent prior to [the date the patent application was filed].” See defendant’s memorandum in support of their motion, p. 1. Plaintiffs oppose defendant’s motion. A recitation of the factual and procedural background of…