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DIFF Subgroup
H02P 25/089

Sensorless control (direct torque control H02P23/30)

Introduced: January 2016

Title

Titles differ between systems:

IPC: Sensorless control

CPC: Sensorless control (direct torque control H02P23/30)

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 > Reluctance motors > Commutation > Sensorless control

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 > Reluctance motors > Commutation > Sensorless control (direct torque control H02P23/30)

Additional Content IPC

Direct torque control

No child classifications to compare. This is a leaf node in both 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