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PCE
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DIFF Subgroup
H02J 7/34

Parallel operation in networks using both storage and other DC sources, e.g. providing buffering (H02J7/14 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Parallel operation in networks using both storage and other DC sources, e.g. providing buffering

CPC: Parallel operation in networks using both storage and other DC sources, e.g. providing buffering (H02J7/14 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Circuit arrangements for charging or discharging batteries or for supplying loads from batteries > Parallel operation in networks using both storage and other DC sources, e.g. providing buffering

CPC:

Circuit arrangements for charging or discharging batteries or for supplying loads from batteries > Parallel operation in networks using both storage and other DC sources, e.g. providing buffering (H02J7/14 takes precedence)

Additional Content IPC

Arrangements for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle

CPC subdivides this area 3x more granularly than IPC with 2 additional codes.

2 codes are CPC-only extensions.

IPC defines codes here since 1985.

Child Classifications

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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