E04D ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
Introduced: September 1968
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- BUILDING
- Subclass:
- ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
Description
E04D covers roof coverings, sky-lights, gutters, and associated tools used in roof construction and maintenance. This subclass includes materials and systems for waterproofing and weatherproofing roof surfaces (such as tiles, shingles, membranes, and metal sheets), roof windows and light-admitting devices, drainage systems for roof water removal, and specialized hand or mechanical tools designed for roof work. The classification encompasses both the finished roof products and the methods of installation, as well as repair and maintenance equipment specific to roofing operations.
Related Keywords
9 direct subcodes
Child Classifications
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- E04D 1/00 Roof covering by making use of tiles, slates, shingles, or other small roofing elements
- E04D 11/00 Roof covering, as far as not restricted to features covered by only one of groups; Roof covering in ways not provided for by groups
- E04D 12/00 Non-structural supports for roofing materials, e.g. battens, boards
- E04D 13/00 Special arrangements or devices in connection with roof coverings; Roof drainage
- E04D 15/00 Apparatus or tools for roof working
- E04D 3/00 Roof covering by making use of flat or curved slabs or stiff sheets
- E04D 5/00 Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D 7/00 Roof covering by sealing masses applied; Gravelling of flat roofs
- E04D 9/00 Roof covering by using straw, thatch, or like materials
Top Applicants
Top 10 applicants by patent filingsfor 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