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IPC Main Group
E04D 15/00

Apparatus or tools for roof working

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:
FIXED CONSTRUCTIONS
Class:
BUILDING
Subclass:
ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS

Filing statistics

IPC E04D 15/00 belongs to the parent subclass E04D, which 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

roof-working TOOL(S)

4 direct subcodes

Child Classifications

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  • E04D 15/02 for roof coverings comprising tiles, shingles, or like roofing elements
  • E04D 15/04 for roof coverings comprising slabs, sheets or flexible material
  • E04D 15/06 for handling roofing or sealing material in roll form
  • E04D 15/07 for handling roofing or sealing material in bulk form

Top Applicants

Top 10 applicants by patent filingsfor class E04, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 6,575
  2. ZHEJIANG YASHA DECORATION COMPANY 4,488
  3. SGCC(STATE GRID CORPORATION OF CHINA) 4,427
  4. CHINA CONSTRUCTION SECOND ENGINEERING BUREAU 4,352
  5. CHINA MCC17 GROUP COMPANY 3,122
  6. GOLD MANTIS FINE DECORATION TECHNOLOGY (SUZHOU) COMPANY 2,605
  7. SHENYANG JIANZHU UNIVERSITY 2,420
  8. CHINA CONSTRUCTION SEVENTH ENGINEERING DIVISION COMPANY 2,284
  9. CHINA CONSTRUCTION FIFTH ENGINEERING DIVISION CORPORATION 2,008
  10. CHINA CONSTRUCTION FIRST BUILDING (GROUP) CORPORATION 1,967