do your best to not register a domain name that is a specific trademark. other than that, you're probably going to be in the clear, especially if you can prove

do your best to not register a domain name that is a specific trademark. other than that, you're probably going to be in the clear, especially if you can prove the domain name is relavent to your own business name. you'll find that US trademarked words are used in other countries' TLDs for other businesses.