1. Patent Information Inquiry Network: When searching, many people still habitually search through official website. Since it is a patent information search, the official search platform must directly log in to the patent information website and then search on the website. However, when searching, you need to register as a member to provide search services. For details, please visit the patent examination information inquiry websites in China, ipa.gov.cn/. and other countries.
Second, China National Intellectual Property Administration: China National Intellectual Property Administration is responsible for patent protection throughout the country. You can search for China National Intellectual Property Administration in the search engine, or directly log on to the website: ipa.gov.cn/; China National Intellectual Property Administration official website home page, "government services" column, click "patent search", you can search for patents. Note that the official website of China National Intellectual Property Administration also needs to be registered before it can be used.
HowNet: HowNet is a network platform integrating periodicals, doctoral dissertations, patents and overseas documents. Click to search China hownet, website: ki.net/. By selecting a patent, you can search for various information such as file standards related to the patent.
Legal basis:
According to the provisions of Article 45 of the Patent Law, if a patent right is requested to be declared invalid or partially invalid, a request for invalidation of the patent right and necessary evidence shall be submitted to the Patent Reexamination Board in duplicate. The request for invalidation shall, in combination with all the evidence submitted, specify the reasons for the request for invalidation and indicate the evidence on which each reason is based.
The reason for the request for invalidation mentioned in the preceding paragraph refers to the fact that the invention-creation granted a patent does not conform to Article 2 (definition of invention, utility model and design), Article 20, paragraph 1 (provisions on confidentiality review), Article 22 (novelty, creativity and practicality), Article 23 (design does not conflict with prior design and prior rights), Article 26, paragraph 3 (requirements of specification) and paragraph 4 (claims) of the Patent Law. The provisions of Article 27, paragraph 2 (requirements for photos of design), Article 33 (modification shall not exceed the scope), Article 20, paragraph 2 (requirements for exclusive rights) and Article 43, paragraph 1 (division of cases shall not exceed the scope of the original application), or Article 5 and Article 25 of the Patent Law (in case the patent right is not granted), or in accordance with Article 9 of the Patent Law (the principle of applying first and not repeating the authorization).
Brief summary:
What are the patent retrieval platforms? Patent information inquiry network. China National Intellectual Property Administration III. CNKI(China National Knowledge Infrastructure)