Little John wrote:
I called the program "FlexLink". Yesterday I got a cease-and-desist e-mail from a company with he same name, that produces and sells conveyors and industrial automation equipment. They have registered this name as trademark, and they regard the usage of close variations of that trade name as a severe infringement of their intellectual property rights.
But they don't sell software, right? If not, then they can't legally stop you, as they're not in the same field as you. Just like Apple can't stop people using the name Apple for non-computer products, like Apple Records. Of course, they'll take you to court to try to stop you, and you'll definitely win; but the big question is: do you have the money to fight for that win?
In the US, anyway, MC is right here--I don't know about Germany. Anybody know any Monster products? One Monster company (industry left out to avoid the publicity for them) went and trademarked every Monster ____ they could think of, and sued everybody using it. They didn't think of Monster Antiques, but they did sue them....and lost big time, because the antique shop had been open decades longer than the flaky company. They also didn't think of Monster Energy Drinks...and now, they are far more famous than the first Monster company.
Point is, you can register the trademark yourself. It is an unrelated field. A quick search shows 18 FlexLink trademarks at uspto.gov (paper products, chemicals, financial services...), although your Flexlink is in Sweden, and I don't know how EU laws work. You might be able to trademark it in the US, then transfer it. If you anticipate making any money at all, and really do like the name, it would be worth the $300 to discuss it with a lawyer. I know a well written letter on legal letterhead would get them off your back here, but EU? I don't know.