This question already has an answer here:

Suppose there is a trademark called "Rubyblock" and you buy rubyblock.com and name your app "Rubyblock" is there some legal risk?

If yes, how do i can check this before to name the app and buy domain?

marked as duplicate by John Conde Jan 19 '14 at 18:22

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  • This isn't a webmaster question, it's a legal question. That said, trademarks, servicemarks, & cet, are managed by the US Patent and Trademark Office. Go to uspto.gov to do a TESS search. – psoft Jan 19 '14 at 17:12
  • @psoft well can't this be usefull for a webmaster community to know? – itsme Jan 19 '14 at 17:25
  • I didn't vote to close. And I am not a lawyer. – psoft Jan 19 '14 at 17:43
  • @HugeNut It really depends on which country the trademark is in, and how it's being used. See these questions: webmasters.stackexchange.com/questions/50214/… and webmasters.stackexchange.com/questions/53455/… – dan Jan 21 '14 at 1:16