Litigation

Merck Serono SA v. TWI Pharmaceuticals Inc.

judgment

25-1464

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Filed
2025-02-19
Terminated
2025-10-30

Patents at issue (1)

8377903PTAB: final decision

Plaintiffs (1)

Summary

The Federal Circuit affirmed a lower tribunal's ruling of unpatentability for US8377903B2, rendering the patent invalid and unenforceable.

Case overview & background

Plain-language overview of the case: parties, accused product, patents at issue, and why the suit matters.

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Key legal developments & outcome

Major rulings, motions, claim construction, settlements, and the present posture or final disposition.

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Plaintiff representatives

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Defendant representatives

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