You can file for a trademark on the U.S. Patent and Trademark Office website. But since navigating the form can be tricky, you might want to hire an attorney to help you protect your rights. Because there's no such thing as "restaurant law," an attorney experienced in intellectual property and/or real estate law is usually a good choice for overseeing the application process.
Don't let your winning concept make its way into someone else's restaurant. Here's how to hold on to what's yours.