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 15/02 Compensating or correcting for variations in pressure, density, or temperature
- G01F 15/06 Indicating or recording devices
- G01F 15/07 Integration to give total flow, e.g. using mechanically-operated integrating mechanism
- 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
- SGCC(STATE GRID CORPORATION OF CHINA) 41,447
- CHINESE ACADEMY OF SCIENCES 32,952
- ROBERT BOSCH DE 16,470
- SAMSUNG ELECTRONICS COMPANY KR 10,052
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
- ZHEJIANG UNIVERSITY 9,529
- GUANGDONG POWER GRID CORPORATION 8,615
- TSINGHUA UNIVERSITY 7,805
- HALLIBURTON ENERGY SERVICES GROUP US 7,796
- QUALCOMM US 7,171