legal ground
Article 867 of the Civil Code of People's Republic of China (PRC) The licensee of a patent exploitation license contract shall exploit the patent in accordance with the agreement, and shall not license a third party other than the agreement to exploit the patent and pay the royalties in accordance with the agreement. Article 868 The transferor of a technology secret transfer contract and the transferor of a technology secret use license contract shall provide technical information, provide technical guidance, ensure the practicability and reliability of the technology and undertake the obligation of confidentiality in accordance with the agreement. The confidentiality obligation stipulated in the preceding paragraph shall not restrict Licensor from applying for a patent, unless otherwise agreed by both parties.