H02J ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
Introduced: September 1968
Description
H02J covers circuit arrangements, control systems, and network configurations for electric power supply, distribution, and storage across generation, transmission, and utilization stages. This subclass encompasses load management, power flow control, grid synchronization, energy storage systems, and integration of renewable or distributed energy sources into electrical networks. Typical technologies include smart grids, microgrids, demand-side management, uninterruptible power supplies, and battery or supercapacitor storage systems. Related generation or conversion technologies (H02K, H02M) and user equipment designs are classified separately.
Additional Content IPC
Glossary
arrangement arrangements device, system or method
Application references
Electrical networks for vessels Electrical networks for aircraft Power supply circuits for apparatus for measuring radiation intensity Electric power supply circuits specially adapted for use in electronic time-pieces with no moving parts Power supply means for digital computers Components associated with high voltage supply for discharge tubes
Of 18 combined children, 9 exist in both systems.
5 codes are CPC-only extensions, 4 exist only in IPC.
Note: 5 CPC extensions are marked as secondary classification only.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- H02J 1/00 Circuit arrangements for DC mains or DC distribution networks +1 CPC IPC+CPC Available in IPC and CPC
- H02J 101/00 Supply or distribution of decentralised, dispersed or local electric power generation since 2026 −3 IPC IPC only IPC only
- H02J 103/00 Details of circuit arrangements for mains or AC distribution networks since 2026 −3 IPC IPC only IPC only
- H02J 105/00 Networks for supplying or distributing electric power characterised by their spatial reach or by the load since 2026 −4 IPC IPC only IPC only
- H02J 107/00 Circuit arrangements for communication specially adapted for monitoring, managing or controlling operation of power networks remotely since 2026 −3 IPC IPC only IPC only
- H02J 11/00 Circuit arrangements for providing service supply to auxiliaries of stations in which electric power is generated, distributed or converted IPC+CPC Available in IPC and CPC
- H02J 13/00 Circuit arrangements for providing remote monitoring or remote control of equipment in a power distribution network IPC+CPC Available in IPC and CPC
- H02J 15/00 Systems for storing electric energy specially adapted for power networks since 1974 IPC+CPC Available in IPC and CPC
- H02J 2101/00 Supply or distribution of decentralised, dispersed or local electric power generation 2nd only +3 CPC CPC only CPC only
- H02J 2103/00 Details of circuit arrangements for mains or AC distribution networks 2nd only +3 CPC CPC only CPC only
- H02J 2105/00 Networks for supplying or distributing electric power characterised by their spatial reach or by the load 2nd only +5 CPC CPC only CPC only
- H02J 2107/00 Circuit arrangements for communication specially adapted for monitoring, managing or controlling operation of power networks remotely 2nd only +4 CPC CPC only CPC only
- H02J 2207/00 Details of circuit arrangements for charging or discharging batteries or supplying loads from batteries 2nd only +5 CPC CPC only CPC only
- H02J 3/00 Circuit arrangements for AC mains or AC distribution networks +3 CPC IPC+CPC Available in IPC and CPC
- H02J 4/00 Circuit arrangements for mains or distribution networks not specified as AC or DC; Circuit arrangements for mains or distribution networks combining AC and DC sections or sub-networks (arrangements using intermediate DC-AC-DC conversion H02J1/002; arrangements using high-voltage DC [HVDC] links H02J3/36) since 1974 IPC+CPC Available in IPC and CPC
- H02J 50/00 Circuit arrangements or systems for wireless supply or distribution of electric power since 2016 +2 CPC IPC+CPC Available in IPC and CPC
- H02J 7/00 Circuit arrangements for charging or discharging batteries or for supplying loads from batteries +4 CPC IPC+CPC Available in IPC and CPC
- H02J 9/00 Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting +2 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H02,2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 54,496
- MITSUBISHI ELECTRIC CORPORATION JP 10,495
- TOYOTA MOTOR CORPORATION 9,464
- GUANGDONG POWER GRID CORPORATION 9,339
- ROBERT BOSCH DE 8,226
- SIEMENS DE 8,218
- DENSO CORPORATION 7,063
- MITSUBISHI ELECTRIC CORPORATION 6,619
- SAMSUNG ELECTRONICS COMPANY KR 5,826
- GREE ELECTRIC APPLIANCES 5,094
Top Applicants (CPC)
Class H02,2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 24,515
- MITSUBISHI ELECTRIC CORPORATION JP 11,346
- SIEMENS DE 9,026
- ROBERT BOSCH DE 9,005
- SAMSUNG ELECTRONICS COMPANY KR 6,729
- GUANGDONG POWER GRID CORPORATION 5,740
- DENSO CORPORATION JP 5,077
- LG ELECTRONICS KR 5,041
- LG INNOTEK COMPANY KR 4,442
- TOYOTA MOTOR CORPORATION 4,349