1, plaintiff's qualification certificate, natural person's ID card, business license of enterprise or institution or institution registration certificate.
2. Patent certificate, which proves the ownership status of the patent right when it is authorized.
3, a copy of the patent register. In a sense, the copy of the patent register is more important evidence than the patent certificate, because the patent certificate records the ownership status of the patent when it is authorized. After authorization, the ownership status of the patent may change, such as the transfer of the patent right and the invalidation of the patent. These contents can not be reflected in the patent certificate, but will be reflected in the copy of the patent register, but in practice some patentees have not provided them and some judicial organs have not paid due attention to them.
4. Patent authorization announcement text: Invention or utility model refers to the patent claim, specification, abstract and drawings; Announce the pictures or photos authorized by the design and a brief description.
5. Receipt of annual patent fee: It proves that the patent continues to be valid.
Where a patent infringement dispute involves a new product manufacturing method invention patent, the unit or individual that manufactures the same product shall provide proof that the manufacturing method of the product is different from the patented method; Where a patent for utility model is involved, the people's court or the administrative department for patent affairs may require the patentee to issue a search report made by the patent administrative department of the State Council.
You can consult Sino Intellectual Property for patent issues. Sino-intellectual property was established with the approval of China National Intellectual Property Administration, and it is one of the few intellectual property service organizations in China. The supporting management software Yunhulu APP provides more than 60 kinds of enterprise services such as intellectual property management, inquiry, protection, rights protection and trading. The whole chain empowers users of enterprises and scientific research institutes, deeply cultivates intellectual property enterprise services and subdivides the track, and performs well in intellectual property intelligent management and service quality. It has served millions of users and is an important channel for global intellectual property protection related to China.
For more patent questions, please contact Zhonghe Intellectual Property Customer Service!