Baldwin Graphic Systems, Inc. (Baldwin) sued Siebert, Inc. (Siebert) for infringement of U.S. Patent No. Re. 35,976 (the Reissue patent) and U.S. Patent No. 5,974,976 (the ’976 patent). After conducting a Markman hearing, the United States District Court for the Northern District of Illinois ultimately granted Siebert’s motions for summary judgment of non-infringement of both patents. Because the district court erred in its construction of some of the disputed claim terms, this court affirms-in-part, reverses-in-part, and remands.
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