According to the U.S. patenting courts, “new recipes or formulas for cooking food which involve the addition or elimination of common ingredients, or for treating them in ways which differ from the former practice, do not amount to invention merely because … no one else ever did the particular thing upon which the applicant asserts his right to a patent.” In re Levin, 178 F.2d 945, 948 (C.C.P.A. 1949); see also “Can Recipes Be Patented?,” Supervisory Patent Examiner Larry Tarazano, USPTO Inventorseye, June 2013 (last visited March 11, 2021).
Instead, the courts wish to see “a coaction or cooperative relationship between the selected ingredients which produces a new, unexpected, and useful function [in the recipe].”
What the case law shows is that recipe inventions will largely depend on the uniqueness of the combination and whether skilled food practitioners would find that the difference between the new recipe and the old recipe is the result of known substitution (e.g., one leavening agent for another), routine optimization (e.g., adding a certain amount of ingredient to achieve the optimal pH), or solving a known problem using known techniques (e.g., using a prior art confectionery cooking technique to achieve the desired result and applying that technique in confectionary prior art).
Where rejections are based on one or more of these processes, an applicant may prove their ingredients are not obvious by demonstrating unexpected functions and synergies from the recited combination. A skilled patent practitioner can help applicants present that evidence using experiments, food laboratory analyses, and consumer testimonials. Be sure to consult with your patent attorney on which strategy will work best for attempting to patent your particular recipe in view of the prior art cited in your case.
Keep in mind that the above risks in seeking patent protection should also be weighed against the potential loss of trade secret protection for the recipe, since patents are published, and once published cannot be retracted. So, a successful attempt at patent protection of a recipe can be bittersweet, since it can foreclose trade secret protection of that recipe. Trade secret strategies for food recipes will be explored in a forthcoming post.