Y04S SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
Description
Y04S covers integrated systems that apply information and communication technologies (ICT) to enhance electrical power networks across generation, transmission, distribution, and consumption stages. This subclass encompasses smart grid technologies, demand-side management systems, grid automation, real-time monitoring and control, and integration of distributed energy resources and renewable sources. It addresses cross-sectional inventions combining power system engineering with digital technologies, data analytics, and networked communications to improve grid efficiency, reliability, and sustainability. Y04S excludes purely electrical power generation or distribution apparatus (classified in H or G sections) unless the primary innovation lies in ICT-enabled system integration for grid optimization.
5 direct subcodes
Child Classifications
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- Y04S 10/00 Systems supporting electrical power generation, transmission or distribution
- Y04S 20/00 Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S 30/00 Systems supporting specific end-user applications in the sector of transportation
- Y04S 40/00 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
- Y04S 50/00 Market activities related to the operation of systems integrating technologies related to power network operation or related to communication or information technologies
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