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DIFF Main Group
E04D 5/00

Roof covering by making use of flexible material, e.g. supplied in roll form (using stiff sheets E04D3/00; gravelling of flat roofs E04D7/00 ; built-up roofs E04D11/02)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Roof covering by making use of flexible material, e.g. supplied in roll form

CPC: Roof covering by making use of flexible material, e.g. supplied in roll form (using stiff sheets E04D3/00; gravelling of flat roofs E04D7/00 ; built-up roofs E04D11/02)

Full Title

Full titles differ between systems:

IPC:

Roof covering by making use of flexible material, e.g. supplied in roll form

CPC:

Roof covering by making use of flexible material, e.g. supplied in roll form (using stiff sheets E04D3/00; gravelling of flat roofs E04D7/00 ; built-up roofs E04D11/02)

IPC and CPC are identically structured here. All 7 subcodes exist in both systems.

Child Classifications

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  • E04D 5/02 of materials impregnated with sealing substances, e.g. roofing felt IPC+CPC Available in IPC and CPC
  • E04D 5/04 by making use of metal foils IPC+CPC Available in IPC and CPC
  • E04D 5/06 by making use of plastics IPC+CPC Available in IPC and CPC
  • E04D 5/08 by making use of other materials IPC+CPC Available in IPC and CPC
  • E04D 5/10 by making use of compounded or laminated materials, e.g. metal foils or plastic films coated with bitumen IPC+CPC Available in IPC and CPC
  • E04D 5/12 specially modified, e.g. perforated, with granulated surface, with attached pads 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