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DIFF Subgroup
E02D 27/32

Foundations for special purposes

Introduced: September 1968

Full Title

Foundations as substructures > Foundations for special purposes

IPC and CPC are identically structured here. All 11 subcodes exist in both systems.

3 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • E02D 27/34 Foundations for sinking or earthquake territories (building constructions with protection arrangements against earthquakes E04H9/02) IPC+CPC Available in IPC and CPC
  • E02D 27/35 Foundations formed in frozen ground, e.g. in permafrost soil since 1980 IPC+CPC Available in IPC and CPC
  • E02D 27/36 Foundations formed in moors or bogs IPC+CPC Available in IPC and CPC
  • E02D 27/38 Foundations for large tanks, e.g. oil tanks IPC+CPC Available in IPC and CPC
  • E02D 27/40 Foundations for dams across valleys or for dam constructions IPC+CPC Available in IPC and CPC
  • E02D 27/44 Foundations for machines, engines or ordnance (special layout of foundations with respect to machinery to be supported F16M9/00) IPC+CPC Available in IPC and CPC
  • E02D 27/46 Foundations for supply conduits or other canals IPC+CPC Available in IPC and CPC
  • E02D 27/48 Foundations inserted underneath existing buildings or constructions IPC+CPC Available in IPC and CPC
  • E02D 27/50 Anchored foundations IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class E02,2013–2023, worldwide · Source: EPO PATSTAT

  1. KOMATSU JP 3,939
  2. CATERPILLAR US 3,490
  3. HITACHI CONSTRUCTION MACHINERY COMPANY JP 2,553
  4. KOMATSU 1,789
  5. JOHN DEERE US 1,277
  6. HITACHI CONSTRUCTION MACHINERY COMPANY 1,102
  7. KOBELCO CONSTRUCTION MACHINERY COMPANY JP 1,014
  8. HOHAI UNIVERSITY 975
  9. CHINA MCC17 GROUP COMPANY 810
  10. VOLVO CONSTRUCTION EQUIPMENT SE 787