摘要
文章对中国球阀领域的专利申请情况进行了分析,主要研究了中国球阀专利申请的总体情况、年度申请量变化趋势、主要申请人/发明人、申请人地域分布、技术领域,使相关企业了解中国球阀专利申请状况,对其研发提供参考。
In the paper, the status of the Chinese patent application on ball valve is analyzed. It makes research mainly on the overall situation of the Chinese patent application on ball valve, trends of annual application volume, main applicants or inventors, geographical distribution of applicants, and technical field. It is expected to provide a reference on understanding the Chinese patent application status of ball valve and research and development for relevant enterprises.
作者
黄振山
飞竹玲
师广义
Huang Zhenshan;Fei Zhuling;Shi Guangyi(Patent Examination Cooperation Center of the Patent Office, CNIPA Beijing, Beijing 100160, China)
出处
《广东化工》
CAS
2019年第15期123-124,120,共3页
Guangdong Chemical Industry
关键词
球阀
中国
专利申请
分析
ball valve
China
application
analysis