Separately-laid insulating layers; Other additional insulating measures; Floating floors (insulating of buildings in general E04B1/62)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Separately-laid insulating layers; Other additional insulating measures; Floating floors

CPC: Separately-laid insulating layers; Other additional insulating measures; Floating floors (insulating of buildings in general E04B1/62)

Full Title

Full titles differ between systems:

IPC:

Flooring > Separately-laid insulating layers; Other additional insulating measures; Floating floors

CPC:

Flooring (stair treads E04F11/104; coverings not specially adapted for floors E04F13/00; borders, skirtings E04F19/02; gratings for cleaning soles of footwear A47L23/24; of similar materials to roads E01C; basic or rough floors E04B5/00) > Separately-laid insulating layers; Other additional insulating measures; Floating floors (insulating of buildings in general E04B1/62)

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

6 codes are CPC-only extensions.

Child Classifications

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E04F 15/181 CPC only CPC only
E04F 15/182 +1 CPC CPC only CPC only
E04F 15/185 CPC only CPC only
E04F 15/186 CPC only CPC only
E04F 15/187 CPC only CPC only
E04F 15/188 CPC only CPC only
E04F 15/20 for sound insulation +2 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