Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup Additional Only
Y04S 40/12

characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment

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 > characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment

4 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • Y04S 40/121 using the power network as support for the transmission
  • Y04S 40/124 using wired telecommunication networks or data transmission busses
  • Y04S 40/126 using wireless data transmission
  • Y04S 40/128 involving the use of Internet protocol

Top Applicants

Top 10 applicants by patent filingsfor class Y04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 11,048
  2. GUANGDONG POWER GRID CORPORATION 3,187
  3. NORTH CHINA ELECTRIC POWER UNIVERSITY 1,200
  4. STATE GRID JIANGSU ELECTRIC POWER COMPANY 956
  5. STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER COMPANY 929
  6. SIEMENS DE 899
  7. STATE GRID ZHEJIANG ELECTRIC POWER COMPANY 794
  8. GUIZHOU POWER GRID CORPORATION 770
  9. SHENZHEN POWER SUPPLY BUREAU COMPANY 745
  10. STATE GRID FUJIAN ELECTRIC POWER COMPANY 720