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PCE
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CPC Subgroup
H02P 5/50

by comparing electrical values representing the speeds

Full Title

Arrangements specially adapted for regulating or controlling the speed or torque of two or more electric motors (H02P6/04, H02P8/40 take precedence) > for speed regulation of two or more dynamo-electric motors in relation to one another > by comparing electrical values representing the speeds

2 direct subcodes

Child Classifications

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  • H02P 5/505 using equalising lines, e.g. rotor and stator lines of first and second motors
  • H02P 5/51 Direct ratio control

Top Applicants

Top 10 applicants by patent filingsfor 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