OPINION
PATEL, District Judge.
Plaintiff Chiron Corporation ("Chiron") brought this action against defendant Abbott Laboratories ("Abbott"), alleging infringement of U.S. Patent No. 5,156,949 ("'949 patent"), which pertains to an immunoassay test for the HIV virus. In its answer, Abbott alleges as two of its defenses inequitable conduct and prior invention. Now before the court are cross-motions for summary judgment on these two defenses.
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