1, early patent search, mainly to learn other people's solutions, design ideas, etc. , assist in research and development;
2. Search and analyze the technical scheme developed by yourself to ensure that your scheme is not infringing;
3. If we find that our scheme belongs to the protection scope of others' patents, there are two ways of thinking. One is to confirm the validity of the patent of the other party, that is, to retrieve and analyze the invalid patent of the other party (it may be decided whether to request invalidation from the state administrative organ as the case may be, but there are few cases of active invalidation);
4. Another way of thinking, circumvention design circumvents the patent of the other party, may also involve circumvention design in part of the work of 1 (this work is usually completed by the patentee and R&D personnel);
5. Patent output in R&D process, namely patent mining, patentability evaluation, patent writing, application, etc. , which is also the patent work that many enterprises are mainly doing at present.