The Trademark Law of China was adopted on 23 August 1982, and revised on 22 February 1993 and 27 October 2001.  Registered trademarks indicate trademarks that have been approved and registered by the trademark Office, and these include trademarks, service marks, collective marks, and certification marks.  
Precise IP Firm’s trademark services include:     Pre-filing advice on trademark registrations; Chinese trademark availability search; Trademark applications and registrations in China and Hong Kong; Renewal of trademark