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IPC Subgroup
H02J 7/4

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

Classification Context

Section:
ELECTRICITY
Class:
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
Subclass:
ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY

5 direct subcodes

Child Classifications

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  • H02J 7/42 with electronic devices having internal batteries, e.g. mobile phones
  • H02J 7/44 between battery management systems and power sources
  • H02J 7/45 between battery management systems and external servers
  • H02J 7/46 Leader-follower arrangements
  • 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

Top Applicants

Top 10 applicants by patent filingsfor class H02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 54,496
  2. MITSUBISHI ELECTRIC CORPORATION JP 10,495
  3. TOYOTA MOTOR CORPORATION 9,464
  4. GUANGDONG POWER GRID CORPORATION 9,339
  5. ROBERT BOSCH DE 8,226
  6. SIEMENS DE 8,218
  7. DENSO CORPORATION 7,063
  8. MITSUBISHI ELECTRIC CORPORATION 6,619
  9. SAMSUNG ELECTRONICS COMPANY KR 5,826
  10. GREE ELECTRIC APPLIANCES 5,094