Pit. From March 1, 2019 to September 2, 2019, Zhejiang Sikai Enterprise Management Consulting Co., Ltd. contacted relevant patent applicants and signed a "Service Contract" without authorization without obtaining a license to practice as an agent from a patent agency. Zhejiang Sikai Enterprise Management Consulting Co., Ltd. was established in 2006. It focuses on enterprise management and financial and taxation consulting. It provides professional and efficient integrated enterprise consulting such as financial and taxation consulting, tax services, intellectual property rights, industrial and commercial services, export tax rebates, and Hong Kong company audits for small and medium-sized enterprises. Serve.