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IPC Subgroup
G01C 3/2

with adaptation to the measurement of the height of an object

Introduced: September 1968

Last revised: January 2006

Full Title

Measuring distances in line of sight; Optical rangefinders > using a parallactic triangle with variable angles and a base of fixed length in the observation station, e.g. in the instrument > with adaptation to the measurement of the height of an object

Classification Context

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

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