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CPC Subgroup
G01R 11/17

Compensating for errors; Adjusting or regulating means therefor

Full Title

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

6 direct subcodes

Child Classifications

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

Top Applicants

Top 10 applicants by patent filingsfor 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