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ARTICLE · 06 MAY 2022

Patent Case Summaries | Week Ending April 29, 2022

Sunoco sued Venture for infringement of four patents relating to systems and methods for blending butane with gasoline.

United StatesIntellectual Property

A weekly summary of the precedential patent-related opinions issued by the Court of Appeals for the Federal Circuit and the opinions designated precedential or informative by the Patent Trial and Appeal Board.


Sunoco Partners Marketing & Terminals L.P. v. U.S. Venture, Inc., et al., Nos. 2020-1640, -1641 (Fed. Cir. (N.D. Ill.) Apr. 29, 2022). Opinion by Prost, joined by Reyna and Stoll.

Sunoco sued Venture for infringement of four patents relating to systems and methods for blending butane with gasoline. The district court held a bench trial, ultimately awarding Sunoco $2 million in damages, which it trebled to $6 million. Venture appealed challenging the district court's rejection of its on-sale-bar defense, determination that it infringed two patents that the Federal Circuit has since held invalid, construction of two claim terms, and decision to enhance damages. Sunoco cross-appealed challenging the district court's reasonable-royalty award and its decision

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