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PCE
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DIFF Subgroup
H02P 25/022

Synchronous motors (H02P25/064 takes precedence)

Introduced: January 2016

Title

Titles differ between systems:

IPC: Synchronous motors

CPC: Synchronous motors (H02P25/064 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details > characterised by the kind of motor > Synchronous motors

CPC:

Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details > characterised by the kind of motor > Synchronous motors (H02P25/064 takes precedence)

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

IPC defines codes here since 2016.

Child Classifications

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  • H02P 25/028 with four quadrant control since 2016 IPC+CPC Available in IPC and CPC
  • H02P 25/03 with brushless excitation since 2016 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