IPC Subgroup
G01F 23/3 by floats
Introduced: January 1985
Last revised: January 2006
Full Title
Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm > by floats
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL; METERING BY VOLUME
Additional Content
Switches operated by floats
Related Keywords
FLOAT(S) for measuring liquid level
6 direct subcodes
Child Classifications
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- G01F 23/32 using rotatable arms or other pivotable transmission elements
- G01F 23/4 using bands or wires as transmission elements
- G01F 23/48 using twisted spindles as transmission elements
- G01F 23/56 using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
- G01F 23/64 of the free float type
- G01F 23/76 characterised by the construction of the float
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