Legal analysis: No. According to the relevant laws and regulations of our country, if the invention-creation for which a patent is applied involves national security or major interests and needs to be kept confidential, it shall be handled in accordance with the relevant provisions of the state. Therefore, patents do not have to be made public.
Legal basis: Article 4 of the Patent Law of People's Republic of China (PRC). Where the invention-creation for which a patent is applied involves national security or vital interests and needs to be kept confidential, it shall be handled in accordance with the relevant provisions of the state.