[U.S.] January 2013 <CAFC> Ernie Ball v. Earvana
更新日：2 日前
Article information
Article type: Case note
Category: United States
Topics: Support requirement, Clarity
First published on this website: 2026-11-01
Display and classification checked: November 2, 2026
Originally published on Ameblo: 2024-09-18 (Japan time). Full English translation.
[U.S.] January 2013 <CAFC> 502 Fed. Appx. 971, Ernie Ball v. Earvana
The negative expression “does not form a sinusoidal arc …” violated 35 U.S.C. § 112 (written-description or definiteness requirement not satisfied).
The specification does not define “sinusoidal,” and a person skilled in the art cannot understand the technical significance of the negative expression.
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