(1), mark the patent number of others on the products manufactured or sold by it and on the packaging of the products;
(2) Using other people's patent numbers in advertisements or other claims, causing people to mistake the designed technology for other people's patented technology;
(three) the use of the patent number of others in the contract, which makes people mistake the technology designed in the contract for the patented technology of others;
(4) Forging or altering other people's patent certificates, patent documents or patent application documents. The act of counterfeiting other people's patents should meet the following conditions at the same time: there must be counterfeiting; The counterfeit must be the patent that others have obtained and actually exist; The act of counterfeiting other people's patents should be intentional.
Legal basis:
patent law of the people's republic of china
Article 68 Anyone who counterfeits a patent shall bear civil liability according to law, and the department in charge of patent law enforcement shall order him to make corrections and make a public announcement, confiscate his illegal income, and may concurrently impose a fine of less than five times his illegal income; If there is no illegal income or the illegal income is less than 50 thousand yuan, a fine of less than 250 thousand yuan may be imposed; If a crime is constituted, criminal responsibility shall be investigated according to law.