State Administration for Industry and Commerce. Trademark Network Office is affiliated to the State Administration for Industry and Commerce. Responsible for the national trademark registration management, responsible for the registration of commodity trademarks, service trademarks, collective trademarks, certification trademarks and other trademarks, handling trademark objection rulings and related matters such as the change, transfer, renewal, renewal and cancellation of registered trademarks, guiding, coordinating and organizing local industrial and commercial administrations to investigate and deal with trademark infringement and counterfeiting cases, and identifying and protecting well-known trademarks according to law. Supervise and manage trademark agencies, study and formulate rules and regulations, specific measures and methods for trademark registration management.