1, IPC divides technical fields into various categories and subcategories, which enables patent documents to be classified and retrieved according to specific technical fields. For inventors and patent searchers, understanding and correctly using IPC classification is an important tool for patent retrieval and evaluation of domain relevance.
2.TRIPS Agreement stipulates the international standards and minimum protection requirements of intellectual property rights, provides some legal protection for innovators, and promotes the creation, dissemination and utilization of technology. TRIPS agreement is of great significance to international patent application, patent validity and rights protection.