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CPC Main Group
G01Q 40/00

Calibration, e.g. of probes

Filing statistics

CPC G01Q 40/00 belongs to the parent subclass G01Q, which recorded 5,436 patent applications worldwide between 2013 and 2023. Annual filings grew from 409 in 2013 to 407 in 2023 (+0%), peaking at 596 applications in 2018. 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

1 direct subcode

Child Classifications

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  • G01Q 40/02 Calibration standards and methods of fabrication thereof

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