Trademark custody is based on trademark monitoring. Trademark owners entrust the management of their trademark rights to a specialized agency for management. The trustee provides opinions on the four major warnings of trademark rights to help trademark owners better protect their trademark rights. Haijun’s trademark custody service is composed of professional trademark agents and lawyers. It provides early warning information and professional opinions for timely follow-up and monitoring of trademarks during the custody process, and helps companies to maintain rights, be opposed, invalidated, and infringed. Provide professional help on issues to improve the safety and value of trademarks in the application for registration and use.