CPC Subgroup Additional Only
Y04S 20/20 End-user application control systems
Full Title
Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof > End-user application control systems
4 direct subcodes
Child Classifications
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- Y04S 20/221 General power management systems
- Y04S 20/222 Demand response systems, e.g. load shedding, peak shaving
- Y04S 20/242 Home appliances
- Y04S 20/248 UPS systems or standby or emergency generators
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