MEMORANDUM OF FINDINGS OF FACT AND CONCLUSIONS OF LAW
LINDSAY, District Judge.
I. Introduction
This case concerns United States Patent No. 4,420,639 (the "'639 patent"), issued with respect to the chemical compound known as nabumetone to Anthony W. Lake and Carl J. Rose on December 13, 1983 and assigned to Beecham Group, p.l.c. ("Beecham"), one of two plaintiffs herein.
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