IPC Subgroup
E02D 27/32 Foundations for special purposes
Introduced: September 1968
Last revised: January 2006
Full Title
Foundations as substructures > Foundations for special purposes
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING
- Subclass:
- FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
11 direct subcodes
Child Classifications
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- E02D 27/34 Foundations for sinking or earthquake territories
- E02D 27/35 Foundations formed in frozen ground, e.g. in permafrost soil
- E02D 27/36 Foundations formed in moors or bogs
- E02D 27/38 Foundations for large tanks, e.g. oil tanks
- E02D 27/4 Foundations for dams across valleys or for dam constructions
- E02D 27/42 Foundations for poles, masts, or chimneys
- E02D 27/44 Foundations for machines, engines, or ordnance
- E02D 27/46 Foundations for supply conduits or other canals
- E02D 27/48 Foundations inserted underneath existing buildings or constructions
- E02D 27/5 Anchored foundations
- E02D 27/52 Submerged foundations
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