1. Intellectual property. One who formally seeks to prevent the grant of a patent or the registration of a trademark. [Cases: Patents 104; Trade Regulation 216. C.J.S. Patents §§ 145–147, 149–151, 173–175; Trade-Marks, Trade-Names, and Unfair Competition§§ 181–182, 184–187.]
2. Hist. APPOSER.
