IPC Main Group
G01V 3/00 Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
Additional Content
For navigation, for surveying
9 direct subcodes
Child Classifications
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- G01V 3/02 operating with propagation of electric current
- G01V 3/08 operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V 3/12 operating with electromagnetic waves
- G01V 3/14 operating with electron or nuclear magnetic resonance
- G01V 3/15 specially adapted for use during transport, e.g. by a person, vehicle or boat
- G01V 3/18 specially adapted for well-logging
- G01V 3/36 Recording data
- G01V 3/38 Processing data, e.g. for analysis, for interpretation or for correction
- G01V 3/4 specially adapted for measuring magnetic field characteristics of the earth
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