Charles Macedo and Michael Downs Co-Author Oxford University Press Journal of Intellectual Property Law & Practice article on “EcoFactor narrows patent damages testimony standards in the United States”

Journal of Intellectual Property Law & Practice, jpaf061, https://doi.org/10.1093/jiplp/jpaf061

In this Oxford University Press article by Charley Macedo and Michael Downs, which appeared in the Journal of Intellectual Property Law & Practice, the authors examine the Federal Circuit’s en banc decision in EcoFactor v. Google.

Abstract

In EcoFactor, Inc v Google LLC, 137 F4th 1333 (Fed Cir 2025) (en banc), the full court of the US Court of Appeals for the Federal Circuit (‘Federal Circuit’) addressed the court’s role as a gatekeeper with respect to damage experts. In particular, Chief Judge Moore, writing for the court, concluded that it was improper for the trial court to allow a damages expert to testify that lump-sum settlement payments were evidence of what a reasonable royalty would be without corroboration that such payments were royalties.

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