Plaintiff, Ferring B.V., filed a patent infringement action against Watson Laboratory, Inc. (“Watson Labs”) for tranexamic acid tablets sold under the trademark Lysteda. Watson Labs applied to the FDA for permission to manufacture and sell generic tranexamic acid tablets. Watson Labs filed a counterclaim and answer, including an assertion that the patent-in-suit was invalid. Ferring moved to dismiss the counterclaims for invalidity and to strike invalidity as an affirmative defense.
The district court began its analysis by noting that “[a]s a matter of both fairness and efficiency, it seems improper to permit a defendant to force a plaintiff to choose between ambush at trial and needless preparation for a myriad of potential affirmative defenses consistent with a single broad affirmative defense in the answer. The purpose behind the contemporary reading of Rule 8(a) is to prevent a plaintiff from extorting a settlement from a defendant through the prospect of an expensive, detracted discovery process predicated on threadbare claims that would be seen to be legally insufficient if the circumstances of the alleged wrongdoing were even read, much less put to proof.”
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