Load-carrying floor structures formed substantially of prefabricated units (E04B5/43 - E04B5/48 take precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Load-carrying floor structures formed substantially of prefabricated units

CPC: Load-carrying floor structures formed substantially of prefabricated units (E04B5/43 - E04B5/48 take precedence)

Full Title

Full titles differ between systems:

IPC:

Floors; Floor construction with regard to insulation; Connections specially adapted therefor > Load-carrying floor structures formed substantially of prefabricated units

CPC:

Floors; Floor construction with regard to insulation; Connections specially adapted therefor (elements for floors, e.g. bricks, stones, filling bodies, girders, E04C; flooring as finishing work, insulation of flooring, sectional false floors, e.g. for computers E04F15/00) > Load-carrying floor structures formed substantially of prefabricated units (E04B5/43 - E04B5/48 take precedence)

Of 7 combined children, 5 exist in both systems.

2 codes are CPC-only extensions.

4 shared codes have differing titles between IPC and CPC.

Child Classifications

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E04B 5/023 CPC only CPC only
E04B 5/026 CPC only CPC only
E04B 5/04 with beams of concrete or other stone-like material, e.g. asbestos cement (E04B5/08, E04B5/14 take precedence) +2 CPC IPC+CPC Available in IPC and CPC
E04B 5/08 assembled of block-shaped elements, e.g. hollow stones (E04B5/14 takes precedence; floors composed of reinforced brickwork E04B5/44) IPC+CPC Available in IPC and CPC
E04B 5/10 with metal beams or girders, e.g. with steel lattice girders (E04B5/14 takes precedence) IPC+CPC Available in IPC and CPC
E04B 5/12 with wooden beams (E04B5/14 takes precedence) IPC+CPC Available in IPC and CPC
E04B 5/14 with beams or girders laid in two directions 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