The registered trademark is assigned: refers to the trademark owner for sale by Company A to Company B, the trademark owner has changed. (Including the company's merger, consolidation or separation) 
 Trademarks of change: refers to the trademark rights in the name or address has changed, the trademark owner the same. 
 Trademarks of changes to registration: (a) change of name or address of trademark registration, trademark holders must be all the registered trademark perform the procedures. (B) change the registered name of the documents issued by local authorities or the industry and commerce administration departments above the county level. 
 (C) companies and the merger or separation should not process the change, but should a transfer application. 
 Trademark assignment registration: (a) to handle the transfer of a registered trademark of the assignor and the assignee must jointly apply to the Trademark Office by the assignee. (B) corporate and classification from or merger shall promptly apply for assignment of a registered trade mark applications.