据国家知识产权局2025年1月15日介绍,截至2024年底,我国国内发明专利有效量达到475.6万件,成为世界上首个突破400万件的国家。其中国内高价值发明专利拥有量达到197.8万件,同比增长18.8%。 By the end of 2024, China had approximately 4.76 million valid domestic invention patents ...
ZAGREB, Oct. 16 (Xinhua) -- The three-day 23rd Croatian International Invention Exhibition, known as ARCA 2025, opened here on Thursday as a Chinese delegation, headed by He Zhenfu, vice chairman of ...
Before the compass was invented, explorers had to look at the sun, moon, and stars for directional guidance. The Chinese first used magnetic rocks to determine north and south. This technique was ...
A ceremony to present recipients with the 25th WIPO-CNIPA Award for Chinese Outstanding Patented Invention & Industrial Design took place in the city of Dalian, northeast China's Liaoning Province. A ...
当前正在显示可能无法访问的结果。
隐藏无法访问的结果