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IPC Main Group
G01G 3/00

Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
WEIGHING

Filing statistics

IPC G01G 3/00 belongs to the parent subclass G01G, which recorded 74,572 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,165 in 2013 to 8,619 in 2023 (+172%), peaking at 10,857 applications in 2020. The most active applicants in class G01 are SGCC(STATE GRID CORPORATION OF CHINA) (41,447 applications), CHINESE ACADEMY OF SCIENCES (32,952 applications) and ROBERT BOSCH (16,470 applications).

Source: EPO PATSTAT, worldwide filings

6 direct subcodes

Child Classifications

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  • G01G 3/06 wherein the weighing element is in the form of a spiral spring
  • G01G 3/08 wherein the weighing element is in the form of a leaf spring
  • G01G 3/1 wherein the torsional deformation of a weighing element is measured
  • G01G 3/18 Temperature-compensating arrangements

Top Applicants

Top 10 applicants by patent filingsfor 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