We have had the same business name forever, yesterday we got a letter saying that the business name was a registered trademark of someone else. It even recommended we do a search of the ustpo site . low and behold the name is now a registered trademark of this guy. I hate to have to change the name but it appears not to do so will be a violation of trademark laws. Some how it does not seem right that he can do this. Any suggestions? or is it best to just change our name.