CPC Subgroup
E02D 17/16 Loosening of soil or rock, under water (for correcting streams E02B3/02; by dredgers or excavators E02F)
Full Title
Excavations; Bordering of excavations; Making embankments (soil-shifting apparatus E02F; earth drilling E21) > Loosening of soil or rock, under water (for correcting streams E02B3/02; by dredgers or excavators E02F)
Top Applicants
Top 10 applicants by patent filingsfor class E02, 2013–2023, worldwide · Source: EPO PATSTAT
- KOMATSU JP 3,939
- CATERPILLAR US 3,490
- HITACHI CONSTRUCTION MACHINERY COMPANY JP 2,553
- KOMATSU 1,789
- JOHN DEERE US 1,277
- HITACHI CONSTRUCTION MACHINERY COMPANY 1,102
- KOBELCO CONSTRUCTION MACHINERY COMPANY JP 1,014
- HOHAI UNIVERSITY 975
- CHINA MCC17 GROUP COMPANY 810
- VOLVO CONSTRUCTION EQUIPMENT SE 787