This is a really interesting development. Rebecca Charles of Pearl Oyster Bar in New York is suing another restaurateur who she claims has appropriated her concept and recipes. This is, of course, something that has been going on forever, and even extends to the cookbook publishing industry where for generations thousands of recipes are printed that are lifted from other books without permission or attribution.
I'm not going to take a firm position on this yet. But I suppose that if she can prove that she developed the recipes from scratch and they are entirely unique (like the process of making edible paper developed by Homaro Cantu that is mentioned in the article and for which he has applied for a patent) she might have a case. But we are talking about lobster rolls and Caesar salad here. Idiosyncratic as these recipes might be it's going to be very difficult for her to make the case that she has any claim to their invention. I'll bet the case gets thrown out of court.