Protecting elements, switches, relays or circuit breakers

Full Title

Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof > Protecting elements, switches, relays or circuit breakers

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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