with plane sloping surfaces, e.g. saddle roofs (E04B7/12 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: with plane sloping surfaces, e.g. saddle roofs

CPC: with plane sloping surfaces, e.g. saddle roofs (E04B7/12 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Roofs; Roof construction with regard to insulation > with plane sloping surfaces, e.g. saddle roofs

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) > with plane sloping surfaces, e.g. saddle roofs (E04B7/12 takes precedence)

CPC subdivides this area 3x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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E04B 7/022 +1 CPC CPC only CPC only
E04B 7/026 CPC only CPC only
E04B 7/028 CPC only CPC only
E04B 7/04 supported by horizontal beams or the equivalent resting on the walls (E04B7/06 takes precedence) +1 CPC IPC+CPC Available in IPC and CPC
E04B 7/06 Constructions of roof intersections or hipped ends +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