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CPC Subgroup
E02F 5/16

Machines for digging other holes in the soil (earth drilling E21)

Full Title

Dredgers or soil-shifting machines for special purposes > Machines for digging other holes in the soil (earth drilling E21)

Filing statistics

CPC E02F 5/16 belongs to the parent subclass E02F, which recorded 64,660 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,479 in 2013 to 5,780 in 2023 (+29%), peaking at 7,760 applications in 2020. The most active applicants in class E02 are KOMATSU (3,939 applications), CATERPILLAR (3,490 applications) and HITACHI CONSTRUCTION MACHINERY COMPANY (2,553 applications).

Source: EPO PATSTAT, worldwide filings

2 direct subcodes

Child Classifications

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Top Applicants

Top 10 applicants by patent filingsfor class E02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. KOMATSU JP 3,939
  2. CATERPILLAR US 3,490
  3. HITACHI CONSTRUCTION MACHINERY COMPANY JP 2,553
  4. KOMATSU 1,789
  5. JOHN DEERE US 1,277
  6. HITACHI CONSTRUCTION MACHINERY COMPANY 1,102
  7. KOBELCO CONSTRUCTION MACHINERY COMPANY JP 1,014
  8. HOHAI UNIVERSITY 975
  9. CHINA MCC17 GROUP COMPANY 810
  10. VOLVO CONSTRUCTION EQUIPMENT SE 787