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CPC Subgroup
E02B 3/16

Sealings or joints (; joints for foundation structures E02D29/16; sealing joints not restricted to hydraulic engineering work E04B1/68)

Full Title

Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites (barrages or weirs E02B7/00); Sealings or joints for engineering works in general > Sealings or joints (; joints for foundation structures E02D29/16; sealing joints not restricted to hydraulic engineering work E04B1/68)

Filing statistics

CPC E02B 3/16 belongs to the parent subclass E02B, which recorded 50,164 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,727 in 2013 to 4,705 in 2023 (+73%), peaking at 6,438 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

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