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PCE
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DIFF Subgroup
G01R 11/17

Compensating for errors; Adjusting or regulating means therefor

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption > Constructional details > Compensating for errors; Adjusting or regulating means therefor

CPC:

Electromechanical arrangements for measuring time integral of electric power or current, e.g. of consumption (monitoring electric consumption of electrically-propelled vehicles B60L3/00) > Constructional details > Compensating for errors; Adjusting or regulating means therefor

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • G01R 11/19 Compensating for errors caused by disturbing torque, e.g. rotating-field errors of polyphase meters since 1974 IPC+CPC Available in IPC and CPC
  • G01R 11/20 Compensating for phase errors in induction meters IPC+CPC Available in IPC and CPC
  • G01R 11/21 Compensating for errors caused by damping effects of the current, e.g. adjustment in the overload range since 1974 IPC+CPC Available in IPC and CPC
  • G01R 11/22 Adjusting torque, e.g. adjusting starting torque, adjusting of polyphase meters for obtaining equal torques IPC+CPC Available in IPC and CPC
  • G01R 11/23 Compensating for errors caused by friction, e.g. adjustment in the light load range since 1974 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G01,2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 41,447
  2. CHINESE ACADEMY OF SCIENCES 32,952
  3. ROBERT BOSCH DE 16,470
  4. SAMSUNG ELECTRONICS COMPANY KR 10,052
  5. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
  6. ZHEJIANG UNIVERSITY 9,529
  7. GUANGDONG POWER GRID CORPORATION 8,615
  8. TSINGHUA UNIVERSITY 7,805
  9. HALLIBURTON ENERGY SERVICES GROUP US 7,796
  10. QUALCOMM US 7,171

Top Applicants (CPC)

Class G01,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 21,460
  2. ROBERT BOSCH DE 17,801
  3. SGCC(STATE GRID CORPORATION OF CHINA) 17,347
  4. SAMSUNG ELECTRONICS COMPANY KR 13,192
  5. QUALCOMM US 9,900
  6. HALLIBURTON ENERGY SERVICES GROUP US 9,742
  7. PHILIPS ELECTRONICS NL 7,249
  8. MITSUBISHI ELECTRIC CORPORATION JP 6,503
  9. ZHEJIANG UNIVERSITY 6,414
  10. DENSO CORPORATION JP 6,382