CPC Subgroup Additional Only
Y04S 40/18 Network protocols supporting networked applications, e.g. including control of end-device applications over a network
Full Title
Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them > Network protocols supporting networked applications, e.g. including control of end-device applications over a network
Top Applicants
Top 10 applicants by patent filingsfor 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