with metal glazing bars

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Roof covering by making use of flat or curved slabs or stiff sheets > of plane slabs, slates, or sheets, or in which the cross-section is unimportant > of glass or other translucent material; Fixing means therefor > with metal glazing bars

CPC:

Roof covering by making use of flat or curved slabs or stiff sheets (E04D1/00 takes precedence; built-up roofs E04D11/02) > of plane slabs, slates, or sheets, or in which the cross-section is unimportant (E04D3/35 takes precedence) > of glass or other translucent material; Fixing means therefor (fixing glass panes by means applicable to windows E06B3/54) > with metal glazing bars

Of 8 combined children, 0 exist in both systems.

8 codes are CPC-only extensions.

Note: 8 CPC extensions are marked as secondary classification only.

Child Classifications

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E04D 2003/0806 2nd only CPC only CPC only
E04D 2003/0812 2nd only CPC only CPC only
E04D 2003/0818 2nd only +2 CPC CPC only CPC only
E04D 2003/0843 2nd only +2 CPC CPC only CPC only
E04D 2003/0862 2nd only CPC only CPC only
E04D 2003/0868 2nd only +2 CPC CPC only CPC only
E04D 2003/0887 2nd only CPC only CPC only
E04D 2003/0893 2nd only CPC only CPC only

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