6729808 is the trademark application number, ZC is the registration, and SL is the acceptance, which has nothing to do with the patent. With the application number, you can check the registration information of your trademark on China Trademark Online.
Patents and trademarks are different. Patents have their own numbers, and they are applied in China National Intellectual Property Administration Patent Office. Trademarks are in the State Trademark Office, which are two different things.