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IPC Subclass
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

excavating foundations for BUILDING(S)shifting EARTHEXCAVATING by dredging or soil-shiftingexcavating FOUNDATION(S)LOADER(S) of soil-shifting typeMOVING earth (soil-shifting)dredging MUDRESERVOIR(S) as building structuresSCOOP(S) for shifting soilSHIFTING of soilshifting SOILWORKING earth or soil

5 direct subcodes

Child Classifications

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  • E02F 1/00 General working methods with dredgers or soil-shifting machines

Top Applicants

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

  1. KOMATSU JP 3,549
  2. CATERPILLAR US 2,893
  3. HITACHI CONSTRUCTION MACHINERY COMPANY JP 2,390
  4. HITACHI CONSTRUCTION MACHINERY COMPANY 2,340
  5. POWERCHINA HUADONG ENGINEERING CORPORATION 2,336
  6. CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 2,174
  7. SGCC(STATE GRID CORPORATION OF CHINA) 2,119
  8. HOHAI UNIVERSITY 1,821
  9. KOMATSU 1,775
  10. POWERCHINA GUIYANG ENGINEERING CORPORATION 1,725