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CPC Subgroup
G01V 1/40

specially adapted for well-logging

Full Title

Seismology; Seismic or acoustic prospecting or detecting > specially adapted for well-logging

Filing statistics

CPC G01V 1/40 belongs to the parent subclass G01V, which recorded 92,801 patent applications worldwide between 2013 and 2023. Annual filings grew from 6,945 in 2013 to 8,224 in 2023 (+18%), peaking at 10,237 applications in 2020. The most active applicants in class G01 are CHINESE ACADEMY OF SCIENCES (21,460 applications), ROBERT BOSCH (17,801 applications) and SGCC(STATE GRID CORPORATION OF CHINA) (17,347 applications).

Source: EPO PATSTAT, worldwide filings

3 direct subcodes

Child Classifications

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  • G01V 1/42 using generators in one well and receivers elsewhere or vice versa (G01V1/52 takes precedence)

Top Applicants

Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 21,460
  2. ROBERT BOSCH DE 17,801
  3. SGCC(STATE GRID CORPORATION OF CHINA) 17,347
  4. SAMSUNG ELECTRONICS COMPANY KR 13,192
  5. QUALCOMM US 9,900
  6. HALLIBURTON ENERGY SERVICES GROUP US 9,742
  7. PHILIPS ELECTRONICS NL 7,249
  8. MITSUBISHI ELECTRIC CORPORATION JP 6,503
  9. ZHEJIANG UNIVERSITY 6,414
  10. DENSO CORPORATION JP 6,382