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PCE
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DIFF Main Group
H02J 1/00

Circuit arrangements for DC mains or DC distribution networks

Introduced: September 1968

Additional Content IPC

Electric propulsion with power supplied within the vehicle Electric circuits specially adapted for vehicles Power supply, e.g. DC power supply, for digital computers

Of 8 combined children, 7 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • H02J 1/001 CPC only CPC only
  • H02J 1/002 using intermediate DC-AC-DC conversion since 2026 IPC+CPC Available in IPC and CPC
  • H02J 1/02 Arrangements for reducing harmonics or ripples IPC+CPC Available in IPC and CPC
  • H02J 1/04 Current-controlled supply systems, e.g. constant-current supply systems IPC+CPC Available in IPC and CPC
  • H02J 1/06 Two-wire DC power distribution systems IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class H02,2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 24,515
  2. MITSUBISHI ELECTRIC CORPORATION JP 11,346
  3. SIEMENS DE 9,026
  4. ROBERT BOSCH DE 9,005
  5. SAMSUNG ELECTRONICS COMPANY KR 6,729
  6. GUANGDONG POWER GRID CORPORATION 5,740
  7. DENSO CORPORATION JP 5,077
  8. LG ELECTRONICS KR 5,041
  9. LG INNOTEK COMPANY KR 4,442
  10. TOYOTA MOTOR CORPORATION 4,349