E04B 7/00 Roofs; Roof construction with regard to insulation (structures for roofs as well as for floors E04B5/00; ceilings E04B9/00; greenhouses A01G9/14; large containers having floating covers B65D88/34; roof trusses, truss-like structures, joists E04C3/02; roof coverings E04D)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Roofs; Roof construction with regard to insulation
CPC: Roofs; Roof construction with regard to insulation (structures for roofs as well as for floors E04B5/00; ceilings E04B9/00; greenhouses A01G9/14; large containers having floating covers B65D88/34; roof trusses, truss-like structures, joists E04C3/02; roof coverings E04D)
Full Title
Full titles differ between systems:
Roofs; Roof construction with regard to insulation
Roofs; Roof construction with regard to insulation (structures for roofs as well as for floors E04B5/00; ceilings E04B9/00; greenhouses A01G9/14; large containers having floating covers B65D88/34; roof trusses, truss-like structures, joists E04C3/02; roof coverings E04D)
IPC and CPC are identically structured here. All 7 subcodes exist in both systems.
6 shared codes have differing titles between IPC and CPC.
Child Classifications
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- E04B 7/02 with plane sloping surfaces, e.g. saddle roofs (E04B7/12 takes precedence) +3 CPC IPC+CPC Available in IPC and CPC
- E04B 7/08 Vaulted roofs (E04B7/14 takes precedence; vaulted structures in general E04B1/32; inflatable tents or canopies, in general E04H15/20; inflatable forms for shaping in situ E04G11/04) IPC+CPC Available in IPC and CPC
- E04B 7/12 formed in bays, e.g. sawtooth roofs (E04B7/10 takes precedence) IPC+CPC Available in IPC and CPC
- E04B 7/14 Suspended roofs (suspended tents or canopies in general E04H15/04) IPC+CPC Available in IPC and CPC
- E04B 7/16 Roof structures with movable roof parts (buildings for special purposes E04H) +2 CPC IPC+CPC Available in IPC and CPC
- E04B 7/18 Special structures in or on roofs, e.g. dormer windows (in connection with roof coverings E04D13/00, especially domes E04D13/03) IPC+CPC Available in IPC and CPC
- E04B 7/20 Roofs consisting of self-supporting slabs, e.g. able to be loaded since 1990 +1 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class E04,2013–2023, worldwide · Source: EPO PATSTAT
- CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 6,575
- ZHEJIANG YASHA DECORATION COMPANY 4,488
- SGCC(STATE GRID CORPORATION OF CHINA) 4,427
- CHINA CONSTRUCTION SECOND ENGINEERING BUREAU 4,352
- CHINA MCC17 GROUP COMPANY 3,122
- GOLD MANTIS FINE DECORATION TECHNOLOGY (SUZHOU) COMPANY 2,605
- SHENYANG JIANZHU UNIVERSITY 2,420
- CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION COMPANY 2,284
- CHINA CONSTRUCTION FIFTH ENGINEERING DIVISION CORPORATION 2,008
- CHINA CONSTRUCTION FIRST BUILDING (GROUP) CORPORATION 1,967
Top Applicants (CPC)
Class E04,2013–2023, worldwide · Source: EPO PATSTAT
- CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 1,675
- CHINA MCC17 GROUP COMPANY 1,593
- ZHEJIANG YASHA DECORATION COMPANY 1,551
- SGCC(STATE GRID CORPORATION OF CHINA) 1,297
- GOLD MANTIS FINE DECORATION TECHNOLOGY (SUZHOU) COMPANY 1,212
- SHENYANG JIANZHU UNIVERSITY 926
- VAELINGE INNOVATION SE 901
- CHINA MCC5 GROUP CORPORATION 894
- VKR HOLDING DK 854
- SHANGHAI BAOYE GROUP CORPORATION 753