don't forget to bookmark us (CTRL-D) Trademark
A trademark can be a word, number, phrase, picture, logo, sound, shape, or any combination of these things.
When you register a trademark it will give you the legal right to use it and you will have the right to sell it too. You can get a trademark for your product name or your domain, but it's not necessary. If you do, please make sure it's not a trademark for anyone else before registering anything. If you register a domain that is a trademark for someone, you will be forced to take your site down.
You can register your trademarks at the sites listed below. Be sure to check how much it will cost, first: