This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

adj. Of or relating to a word, phrase, or logo that is used or registered as a trademark.

v. Simple past tense and past participle of trademark.

adj. (of goods and merchandise) labeled with proprietary (and legally registered) identification guaranteeing exclusive use

"The store, which was photographed by an expatriate blogger who uses the handle BirdAbroad, has a sign identifying it as an Apple Store—a term trademarked by Apple—but is neither an Apple Store nor an Apple authorized reseller, according to store employees and an Apple list of its retail outlets."

trademarked    trademarking    trademarks   

brand   

service mark    wordmark    registered trademark