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PCE
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DIFF Subgroup
G01R 7/08

moving-coil type, e.g. crossed-coil type

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Instruments capable of converting two or more currents or voltages into a single mechanical displacement > for forming a quotient > moving-coil type, e.g. crossed-coil type

CPC:

Instruments capable of converting two or more currents or voltages into a single mechanical displacement (G01R9/00 takes precedence) > for forming a quotient (for measuring resistance G01R27/08) > moving-coil type, e.g. crossed-coil type

IPC and CPC are identically structured here. All 1 subcodes exist in both systems.

Child Classifications

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  • G01R 7/10 having more than two moving coils 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