Grange Insurance Assn.
4 Cited authorities
In re E. I. DuPont DeNemours & Co.
476 F.2d 1357 (C.C.P.A. 1973) Cited 190 times 32 Legal AnalysesReciting thirteen factors to be considered, referred to as "DuPont factors"
Century 21 Real Estate Corp. v. Century Life of America
970 F.2d 874 (Fed. Cir. 1992) Cited 39 timesFinding similarity between "CENTURY 21" and "CENTURY LIFE OF AMERICA" in part because "consumers must first notice th[e] identical lead word"
Weiss Associates, Inc. v. HRL Associates, Inc.
902 F.2d 1546 (Fed. Cir. 1990) Cited 21 timesAffirming denial of registration of "TMM" mark for software because: it was likely to be confused with a registered mark "TMS," also used for software; "[t]he marks sound alike and look alike; and "[t]he products are very similar and directly compete."
Tektronix, Inc. v. Daktronics, Inc.
534 F.2d 915 (C.C.P.A. 1976) Cited 15 timesHolding that the board was not in error in dissecting the marks by considering 38 third party registrations having the suffix "tronics" or "tronix" where the holder of the mark "Tektronix" opposed registration of the mark "Daktronics"