IN THE UNITED STATES DISTRICT COURT

FOR THE EASTERN DISTRICT OF VIRGINIA

Alexandria Division

Actelion Pharmaceuticals LTD.,

Plaintiff,

V.

Hon. Michelle K. Lee, Under Secretary ofCommerce for Intellectual Property andDirector of the United States Patent and

Trademark Office,

Defendant.

Civil Action No. 1:16-cv-304

Memorandum Opinion

This matter comes before the Court on a Motion for Summary Judgment filed by Plaintiff

Actelion PharmaceuticalsLTD., Dkt. No. 12, and a Cross Motion for Summary Judgment filed

by Defendant Michelle K. Lee, Director of the United States Patent and Trademark Office

("PTO"). Dkt. No. 15. Both motions concern the interpretation of, 35 U.S.C. § 154, the statute

whichprovides for a patent term adjustment—^the amount of time added to the life of a patent

due to delays during the patent application period. The dispute, amounting to a differenceof

four or five days ofadditional patent term may appear inconsequential. However, each additional

dayof patent term is of value to the holder, especially in the context of pharmaceutical patents.

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