Big guys in a mature industry won't launch a similar product in a few months. First, they are monitoring the other big players, not the small fish. They won't even notice you before they start losing customers. Then it will take a few months for them to get all the approvals to hire a renowned firm to build the product for them, which, unless it's something you made in a couple of weekends, will probably take the better part of one year to get in the hands of their customers. EDIT: that's my general personal experience, but maybe you have better information on your industry. In that case you can try to apply for a patent, but I think you have more important things to spend your time and money on.