IPC Class
E02 HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
Description
Class E02 encompasses structures and engineering works related to water management, ground stabilization, and earth movement. It covers hydraulic infrastructure such as dams, locks, canals, and flood control systems, as well as foundation design and soil mechanics for construction projects. The class also includes techniques for excavation, dredging, soil compaction, and ground improvement methods. Adjacent classes address specialized building construction (E04) and general civil engineering works beyond the hydraulic and soil-related scope of E02.
4 direct subcodes
Child Classifications
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Top Applicants
Top 10 applicants by patent filings, 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