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)

Filing statistics

CPC E04F 15/00 belongs to the parent subclass E04F, which recorded 84,246 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,628 in 2013 to 6,284 in 2023 (+36%), peaking at 11,005 applications in 2020. The most active applicants in class E04 are CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION (1,675 applications), CHINA MCC17 GROUP COMPANY (1,593 applications) and ZHEJIANG YASHA DECORATION COMPANY (1,551 applications).

Source: EPO PATSTAT, worldwide filings

5 direct subcodes

Child Classifications

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E04F 15/02 Flooring or floor layers composed of a number of similar elements (of webs E04F15/16)
E04F 15/12 Flooring or floor layers made of masses in situ, e.g. seamless magnesite floors, terrazzo (inorganic or bituminous masses C04B; organic plastic masses C08L)
E04F 15/16 Flooring, e.g. parquet on flexible web, laid as flexible webs; Webs specially adapted for use as flooring; (resiliently-mounted floors, e.g. sprung floors, E04F15/22; linoleum D06N; )
E04F 15/18 Separately-laid insulating layers; Other additional insulating measures; Floating floors (insulating of buildings in general E04B1/62)
E04F 15/22 Resiliently-mounted floors, e.g. sprung floors (laid as webs E04F15/16)

Top Applicants

Top 10 applicants by patent filingsfor 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