1, open the patent examination information query of China National Intellectual Property Administration-China and multinational companies:
2. Click Public Query under Public User Registration:
3. Register your account according to the prompt, and those marked with * are required.
4. After successful registration, enter the information and click Login:
5. Enter the "Tian Jixiang bacteriostatic circle" to query, and click Query:
6. You can see that there are no query results: