1, and mark the patent number of others on the products manufactured or sold by it and the product packaging;
2. Using other people's patent numbers in advertisements or other claims makes people mistake the designed technology for other people's patented technology;
3. Using the patent number of others in the contract makes people mistake the technology designed in the contract for the patented technology of others.
legal ground
Article 63 of the Patent Law
Anyone who counterfeits a patent shall bear civil liability according to law, and the administrative department for patent affairs shall order him to make corrections and make an announcement, confiscate his illegal income and may impose a fine of less than four times his illegal income; If there is no illegal income, a fine of less than 200,000 yuan may be imposed; If a crime is constituted, criminal responsibility shall be investigated according to law.