Judge Stark issues claim construction decision in patent dispute between Andover Healthcare and 3M over latex-free bandages

May 13, 2015 – United States District Judge Leonard P. Stark issued a Memorandum Opinion on May 11, 2015, construing six claim terms at issue in Andover Healthcare, Inc. v. 3M Company, Civil Action No. 13-cv-843-LPS (D. Del.).  Judge Stark ruled in favor of Plaintiff and patent owner Andover Healthcare on three of the disputed claim terms, ruled in favor of Defendant 3M on two of the disputed claim terms, and ruled that the plain and ordinary meaning of the term “comprising” would suffice without need to construe that term.  The patent at issue is U.S. Patent No. 6,156,424, entitled “Cohesive Products.”  The technology at issue relates to rubber latex-free cohesive tapes and bandages used in the healthcare industry.  Andover Healthcare markets and sells its CoFlex-LF2 latex-free cohesive bandages.  3M markets and sells its CobanTM Wrap latex-free family of products, which Andover Healthcare alleges infringes its ’424 patent.

By: Frederick C. Millett

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