DIFF Subgroup
H02J 7/40 characterised by the exchange of charge or discharge related data
Introduced: January 2026
Full Title
Circuit arrangements for charging or discharging batteries or for supplying loads from batteries > characterised by the exchange of charge or discharge related data
Of 6 combined children, 5 exist in both systems.
1 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2026.
Child Classifications
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- H02J 7/42 with electronic devices having internal batteries, e.g. mobile phones since 2026 IPC+CPC Available in IPC and CPC
- H02J 7/44 between battery management systems and power sources since 2026 IPC+CPC Available in IPC and CPC
- H02J 7/45 between battery management systems and external servers (batteries used in smart grids for balancing of the load H02J3/32) since 2026 IPC+CPC Available in IPC and CPC
- H02J 7/47 Arrangements for checking compatibility or authentication between one component, e.g. a battery or a battery charger, and another component, e.g. a power source since 2026 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