Similar marks

Trademarks named proton sponge

Published USPTO records whose mark name matches “proton sponge”. Compare owners, classes, and §2(d) citations on each live serial page.

Showing 1–3 of 3

USPTO trademark records named proton sponge. Page 1 of 1.
Serial	Mark	Owner	Registration
77206281	PROTON-SPONGE	MERCK KGAA	3408363
78911418	PROTON-SPONGE	SIGMA-ALDRICH BIOTECHNOLOGY L.P.	—
72404147	PROTON-SPONGE	ALDRICH CHEMICAL COMPANY, INC.	0951131