E04F FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS (windows, doors E06B)
Description
E04F encompasses interior and exterior finishing elements that complete building structures, including stairs, floors, wall coverings, and related installation systems. The subclass covers construction methods, material specifications, and structural designs for aesthetic and functional finishing components that are applied after primary building construction. This includes flooring systems (wooden, ceramic, resilient materials), stair construction and safety features, and interior partition finishing, but excludes primary structural elements covered by earlier building classification sections.
10 direct subcodes
Child Classifications
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- E04F 10/00 Sunshades, ; Awnings ; (trailer awnings E04H15/08; for tents E04H15/58)
- E04F 11/00 Stairways, ramps, or like structures (mounting or marking-off stairways E04F21/26; of temporary construction E04G27/00; means for facilitating access to swimming pools E04H4/144; ); Balustrades; Handrails (ladders permanently attached to fixed structures E06C9/00)
- E04F 13/00 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)
- E04F 15/00 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)
- E04F 17/00 Vertical ducts; Channels, e.g. for drainage (pipes in general F16L; pipe-line systems F17D )
- E04F 19/00 Other details of constructional parts for finishing work on buildings (ladders, e.g. climbing irons, E06C9/04)
- E04F 21/00 Implements for finishing work on buildings (for working or treating building elements of stone or stone-like material B28D)
- E04F 2201/00 Joining sheets or plates or panels
- E04F 2203/00 Specially structured or shaped covering, lining or flooring elements not otherwise provided for
- E04F 2290/00 Specially adapted covering, lining or flooring elements not otherwise provided for
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