Today in Sonix Technology Co., Ltd., v. Publications International, Ltd.,__ F.3d __ (Fed. Cir. 2017)(Lourie, J.), where the trial court had held claims invalid for indefiniteness under what is now 35 USC § 112(b), the author in a relatively rare opinion (for him) reversed an indefiniteness ruling.

The Law Relating to “Subjective” Terminology:  The jurist provides the reader with a tour de force exposition of the law of indefiniteness relating to subjective terms, here, “visually negligible.” The discussion of the relevant law is found at pp. 10-17.

A marked up copy of the opinion is attached to the pdf version of this note.