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.

Filing statistics

IPC subclass E04D recorded 74,274 patent applications worldwide between 2013 and 2023. Annual filings grew from 4,251 in 2013 to 9,324 in 2023 (+119%). The most active applicants in class E04 are CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION (6,575 applications), ZHEJIANG YASHA DECORATION COMPANY (4,488 applications) and SGCC(STATE GRID CORPORATION OF CHINA) (4,427 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

building aspects of ABATTOIRSbuilding aspects of ARENASbuilding aspects of AUDITORIUM(S)building aspects of public BATHSbuilding aspects of BEACONSbuilding aspects of BINSbuilding aspects of BOXES or cubiclesbuilding aspects of CABINSbuilding aspects of CHAPELSbuilding aspects of CHURCH(ES)building aspects of CIRCUS(ES)building aspects of CONCERT HALLSbuilding aspects of CONTAINER(S)roof COVERINGSbuilding aspects of CUBICLESbuilding aspects of FORTIFICATIONSbuilding aspects of picture GALLERIESbuilding aspects of GARAGE(S)building aspects of GRAIN silosbuilding aspects of GRANARIESbuilding features of GRAVESbuilding aspects of gymnasiumsbuilding aspects of HOSPITAL(S)building aspects of HOTELSbuilding aspects of INFIRMARIESbuilding aspects of JAILSbuilding aspects of LIBRARIESbuilding aspects of LIGHTHOUSESbuilding aspects of MARKET(S)building aspects of MOTELSbuilding aspects of MUSEUMSbuilding aspects of OFFICE(S)building aspects of PRISONSbuilding aspects of RESTAURANTSROOF(S) coveringsbuilding aspects of SANATORIUMSbuilding aspects of SCHOOL(S)construction of SERVICE stations for vehiclesbuilding aspects of SHOP(S)building aspects of STABLESbuilding aspects of THEATRESbuilding aspects of TOWER(S)WALL(S) coverings of roofing typebuilding aspects of WAREHOUSESbuilding aspects of WATER towersWEATHER proofing of building structures

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