In Ava Ruha Corp d/b/a Mother's Market & Kitchen v Mother's Nutritional Center Inc, the US Patent and Trademark Office's Trademark Trial and Appeal Board (TTAB) issued a precedential decision regarding a registrant's ability to assert a laches defence in a cancellation proceeding. The petitioner Ava Ruha, which owned a trade mark registration for the stylised mark, Mother's Market & Kitchen, had filed petitions to cancel trade mark registrations owned by the respondent for the marks, Mother's (stylized) and Mother's Nutritional Center, on the grounds of likelihood of confusion, fraud and dilution. In its answer, the respondent asserted the affirmative defence of laches; and the parties subsequently filed cross-motions for summary judgment on the laches issue.