RADER, Circuit Judge.
In the United States District Court for the District of New Jersey, a jury found in favor of Plaintiff-Appellant Princeton Biochemicals, Inc. (Princeton), rejecting the claims of Defendant-Appellee Beckman Coulter, Inc. (Beckman) that Princeton's U.S. Patent No. 5,045,172 (the '172 patent) is invalid by reason of obviousness and prior invention, and finding that Beckman infringed the '172 patent. On all three
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