stone or stone-like materials, e.g. ceramics ; of glass

Introduced: September 1968

Title

Titles differ between systems:

IPC: of stone or stone-like materials, e.g. ceramics; of glass

CPC: stone or stone-like materials, e.g. ceramics ; of glass

Full Title

Full titles differ between systems:

IPC:

Coverings or linings, e.g. for walls or ceilings > composed of covering or lining elements; Sub-structures therefor; Fastening means therefor > composed of a plurality of similar covering or lining elements > of stone or stone-like materials, e.g. ceramics; of glass

CPC:

Coverings or linings, e.g. for walls or ceilings (flooring E04F15/00; decoration of surfaces, mosaic work B44, e.g. paper-hanging B44C7/00; made of webs, e.g. of fabrics or wallpaper D03D, D04G, D04H, D06N, D21H; construction of ceilings E04B9/00; roofings or similar water-tight coverings against precipitation E04D) > composed of covering or lining elements; Sub-structures therefor; Fastening means therefor > composed of a plurality of similar covering or lining elements, (E04F13/072 takes precedence; borders, skirtings E04F19/02; ) > stone or stone-like materials, e.g. ceramics ; of glass

CPC subdivides this area 7x more granularly than IPC with 6 additional codes.

6 codes are CPC-only extensions.

IPC defines codes here since 2006.

Child Classifications

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E04F 13/141 CPC only CPC only
E04F 13/142 CPC only CPC only
E04F 13/144 CPC only CPC only
E04F 13/145 CPC only CPC only
E04F 13/147 CPC only CPC only
E04F 13/148 CPC only CPC only
E04F 13/15 characterised by the use of glass elements since 2006 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