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IPC Subgroup
G01V 5/14

using a combination of several sources, e.g. a neutron and a gamma source

Introduced: January 1980

Last revised: January 2006

Full Title

Prospecting or detecting by the use of ionising radiation, e.g. of natural or induced radioactivity > specially adapted for well-logging > using primary nuclear radiation sources or X-rays > using a combination of several sources, e.g. a neutron and a gamma source

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS

Filing statistics

IPC G01V 5/14 belongs to the parent subclass G01V, which recorded 114,396 patent applications worldwide between 2013 and 2023. Annual filings grew from 8,094 in 2013 to 12,282 in 2023 (+52%), peaking at 13,122 applications in 2020. The most active applicants in class G01 are SGCC(STATE GRID CORPORATION OF CHINA) (41,447 applications), CHINESE ACADEMY OF SCIENCES (32,952 applications) and ROBERT BOSCH (16,470 applications).

Source: EPO PATSTAT, worldwide filings

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