KFC issued a letter Oct. 24 calling out Church's for its use of the two words, but the competitor didn't relent. The promotions in question, shared even after the letter was published, featured Church's fried chicken deals and text that read "Our original recipe is back."

KFC claims that Church's use of the phrase "original recipe" in its own advertisements "is likely to create confusion in the marketplace.

KFC accused Church's Texas Chicken of violating its trademark rights when its fried chicken competitor began using the words 'Original Recipe' in its advertising and promotions.