It's not just DC Comics that are all up in trademark kerfuffles, Marvel have them too.
Indeed they are being challenged by the Swiss manufacturer of the Omega watches, over Marvel's attempt to register the trademark for "Omega The Unknown."
The character, created by by Steve Gerber, Mary Skrenes and Jim Mooney, in an ill-fated but fondly remembered series in 1975-1977 was revived thirty[...]