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IPC Main Group
G01C 5/00

Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY

Related Keywords

measuring DISTANCES transverse to line of sightmeasuring HEIGHTLEVEL(S) for indicating or measuring horizontal or inclination(1) (in surveying)

3 direct subcodes

Child Classifications

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  • G01C 5/02 involving automatic stabilisation of the line of sight
  • G01C 5/04 Hydrostatic levelling, i.e. by flexibly interconnected liquid containers at separated points
  • G01C 5/06 by using barometric means

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