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PCE
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DIFF Subgroup
E04C 3/38

Arched girders or portal frames (straight girders able to be bent E04C3/02; inflatable E04H15/20)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Arched girders or portal frames

CPC: Arched girders or portal frames (straight girders able to be bent E04C3/02; inflatable E04H15/20)

Full Title

Full titles differ between systems:

IPC:

Structural elongated elements designed for load-supporting > Arched girders or portal frames

CPC:

Structural elongated elements designed for load-supporting (as building aids E04G) > Arched girders or portal frames (straight girders able to be bent E04C3/02; inflatable E04H15/20)

IPC and CPC are identically structured here. All 4 subcodes exist in both systems.

4 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • E04C 3/40 of metal (E04C3/46 takes precedence) IPC+CPC Available in IPC and CPC
  • E04C 3/42 of wood, e.g. units for rafter roofs (E04C3/46 takes precedence) IPC+CPC Available in IPC and CPC
  • E04C 3/44 of concrete or other stone-like material, e.g. with reinforcements or tensioning members (E04C3/46 takes precedence) IPC+CPC Available in IPC and CPC
  • E04C 3/46 of materials not covered by groups E04C3/40 - E04C3/44; of a combination of two or more materials 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