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IPC Main Group
G01F 15/00

Details of, or accessories for, apparatus of groups insofar as such details or appliances are not adapted to particular types of such apparatus

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME

9 direct subcodes

Child Classifications

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  • G01F 15/08 Air or gas separators in combination with liquid meters; Liquid separators in combination with gas-meters
  • G01F 15/1 Preventing damage by freezing or excess pressure or insufficient pressure
  • G01F 15/12 Cleaning arrangements; Filters
  • G01F 15/14 Casings, e.g. of special material
  • G01F 15/16 Diaphragms; Bellows; Mountings therefor
  • G01F 15/18 Supports or connecting means for meters

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