国家知识产权局：截至今年5月国内有效发明专利拥有量达497万件

Core Viewpoint - As of May this year, the number of valid invention patents in China has reached 4.97 million, indicating a significant growth in intellectual property rights and innovation within the country [1] Group 1 - The State Intellectual Property Office held a press conference to announce the current status of invention patents in China [1] - The increase in patent ownership is attributed to measures such as optimizing patent application evaluation indicators and enhancing the quality and efficiency of patent examination [1] - The overall efforts aim to improve the quality of patents and the services provided by patent agents [1]