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PCE
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DIFF Subgroup
E04C 3/06

with substantially solid, i.e. unapertured, web (E04C3/10, E04C3/11 take precedence )

Introduced: September 1968

Title

Titles differ between systems:

IPC: with substantially solid, i.e. unapertured, web

CPC: with substantially solid, i.e. unapertured, web (E04C3/10, E04C3/11 take precedence )

Full Title

Full titles differ between systems:

IPC:

Structural elongated elements designed for load-supporting > Joists; Girders, trusses, or truss-like structures, e.g. prefabricated; Lintels; Transoms > of metal > with substantially solid, i.e. unapertured, web

CPC:

Structural elongated elements designed for load-supporting (as building aids E04G) > Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; (E04C3/38 takes precedence; for structures characterised by movable, separable, or collapsible parts E04B1/343; ) > of metal (E04C3/29 takes precedence; as reinforcing elements E04C5/06; manufacture B21) > with substantially solid, i.e. unapertured, web (E04C3/10, E04C3/11 take precedence )

Of 2 combined children, 1 exist in both systems.

1 codes are CPC-only extensions.

Child Classifications

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  • E04C 3/065 CPC only CPC only
  • E04C 3/07 at least partly of bent or otherwise deformed strip- or sheet-like material IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class E04,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 6,575
  2. ZHEJIANG YASHA DECORATION COMPANY 4,488
  3. SGCC(STATE GRID CORPORATION OF CHINA) 4,427
  4. CHINA CONSTRUCTION SECOND ENGINEERING BUREAU 4,352
  5. CHINA MCC17 GROUP COMPANY 3,122
  6. GOLD MANTIS FINE DECORATION TECHNOLOGY (SUZHOU) COMPANY 2,605
  7. SHENYANG JIANZHU UNIVERSITY 2,420
  8. CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION COMPANY 2,284
  9. CHINA CONSTRUCTION FIFTH ENGINEERING DIVISION CORPORATION 2,008
  10. CHINA CONSTRUCTION FIRST BUILDING (GROUP) CORPORATION 1,967

Top Applicants (CPC)

Class E04,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 1,675
  2. CHINA MCC17 GROUP COMPANY 1,593
  3. ZHEJIANG YASHA DECORATION COMPANY 1,551
  4. SGCC(STATE GRID CORPORATION OF CHINA) 1,297
  5. GOLD MANTIS FINE DECORATION TECHNOLOGY (SUZHOU) COMPANY 1,212
  6. SHENYANG JIANZHU UNIVERSITY 926
  7. VAELINGE INNOVATION SE 901
  8. CHINA MCC5 GROUP CORPORATION 894
  9. VKR HOLDING DK 854
  10. SHANGHAI BAOYE GROUP CORPORATION 753