It would be hard to claim there was a theft of trade secrets if you didn't keep the idea confidential. You could consider filing a patent application. Only a true inventor can properly file a patent application. A patent application must be filed within one year of the first sale, offer for sale, or publication, whichever came first, under current US law. We will likely soon switch to a first to file system, though, with no grace period except in limited circumstances.
Answered on Jun 20th, 2011 at 1:21 PM