The pledgor and the pledgee shall enter into a written contract and register and file the pledge with the Trademark Office. When applying for registration of pledge of the exclusive right to trademark, you need to provide an application for registration of pledge of exclusive right to trademark; a copy of the business license of the pledgor and the pledgee; a copy of the "Trademark Registration Certificate"; a pledge contract for the exclusive right to use trademark; and legal evaluation qualifications. Trademark evaluation report and other materials issued by the evaluation agency.