E02F DREDGING; SOIL-SHIFTING
Introduced: September 1968
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
- Subclass:
- DREDGING; SOIL-SHIFTING
Description
E02F covers mechanical and hydraulic equipment and methods for removing, transporting, and depositing soil, sediment, and similar materials from water bodies, land surfaces, and subsurface locations. This subclass encompasses dredges (bucket, suction, and grab types), excavators, dozers, and associated machinery used in channels, harbors, and construction sites, as well as techniques for soil stabilization and relocation. It excludes general earthmoving equipment covered elsewhere and focuses specifically on systems designed for wet or submerged conditions and large-scale soil displacement operations.
Related Keywords
5 direct subcodes
Child Classifications
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- E02F 1/00 General working methods with dredgers or soil-shifting machines
- E02F 3/00 Dredgers; Soil-shifting machines
- E02F 5/00 Dredgers or soil-shifting machines for special purposes
- E02F 7/00 Equipment for conveying or separating excavated material
- E02F 9/00 Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups
Top Applicants
Top 10 applicants by patent filingsfor class E02, 2013–2023, worldwide · Source: EPO PATSTAT
- KOMATSU JP 3,549
- CATERPILLAR US 2,893
- HITACHI CONSTRUCTION MACHINERY COMPANY JP 2,390
- HITACHI CONSTRUCTION MACHINERY COMPANY 2,340
- POWERCHINA HUADONG ENGINEERING CORPORATION 2,336
- CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 2,174
- SGCC(STATE GRID CORPORATION OF CHINA) 2,119
- HOHAI UNIVERSITY 1,821
- KOMATSU 1,775
- POWERCHINA GUIYANG ENGINEERING CORPORATION 1,725