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DIFF Subgroup
G01G 23/20

Indicating weight by mechanical means

Introduced: September 1968

Title

Titles differ between systems:

IPC: Indicating the weight by mechanical means

CPC: Indicating weight by mechanical means

Full Title

Full titles differ between systems:

IPC:

Auxiliary devices for weighing apparatus > Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated > Indicating the weight by mechanical means

CPC:

Auxiliary devices for weighing apparatus > Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated > Indicating weight by mechanical means

Of 7 combined children, 5 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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  • G01G 23/203 CPC only CPC only
  • G01G 23/206 CPC only CPC only
  • G01G 23/22 combined with price indicators IPC+CPC Available in IPC and CPC
  • G01G 23/24 involving logarithmic scales IPC+CPC Available in IPC and CPC
  • G01G 23/26 Drive for the indicating member, e.g. mechanical amplifiers IPC+CPC Available in IPC and CPC
  • G01G 23/28 involving auxiliary or memory marks IPC+CPC Available in IPC and CPC
  • G01G 23/30 with means for illuminating the scale 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