DIFF Subgroup Additional Only
Y04S 10/123 the energy generation units being or involving renewable energy sources
Full Title
Systems supporting electrical power generation, transmission or distribution > Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation > the energy generation units being or involving renewable energy sources
Top Applicants
Top Applicants (CPC)
Class Y04,2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 11,048
- GUANGDONG POWER GRID CORPORATION 3,187
- NORTH CHINA ELECTRIC POWER UNIVERSITY 1,200
- STATE GRID JIANGSU ELECTRIC POWER COMPANY 956
- STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER COMPANY 929
- SIEMENS DE 899
- STATE GRID ZHEJIANG ELECTRIC POWER COMPANY 794
- GUIZHOU POWER GRID CORPORATION 770
- SHENZHEN POWER SUPPLY BUREAU COMPANY 745
- STATE GRID FUJIAN ELECTRIC POWER COMPANY 720