CNIPA Trademark Gazette; Trademark：海绵宝宝; Applicant：VIACOM INTERNATIONAL INC.; Trademark Class: 16 Class; Trademark Status: Gazette Date - 2021.12.28 - 2022.03.27; China trademark regime follows a first-to-file system and so does not recognize international trademarks if they are not registered in the mainland. Chinese Trademark Protection. #海绵宝宝