RADER, Chief Judge.
In this declaratory judgment action, the United States District Court for the Western District of Wisconsin granted the summary judgment motion of Tetra Pak Cheese and Powder Systems (Tetra Pack Cheese) and Treval Laval Holdings & Finance S.A. (Treval Laval) (collectively, Tetra Pak) against Cheese Systems, Inc. (CSI). In an unpublished fifty-four page opinion, the trial court determined that CSI infringed under the doctrine of equivalents...
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