A "trademarked name" refers to a name or phrase that has been legally registered and protected by a company or individual. It means that no one else can use that name to prevent confusion or copying. Full definition
To clarify, the issue began when an author attempted to trademark the name of her book series. (goodereader.com)
It might aid to provide the characteristics you are looking for in a baby stroller after that examining details trademark name to see which one fits your needs best. (bestbabystrollerhq.com)
Often times, automakers trademark names they might or might not use, just to be safe. (carbuzz.com)