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IPC Subgroup
E04F 13/072

composed of specially adapted, structured or shaped covering or lining elements

Introduced: January 2006

Full Title

Coverings or linings, e.g. for walls or ceilings > composed of covering or lining elements; Sub-structures therefor; Fastening means therefor > composed of specially adapted, structured or shaped covering or lining elements

Classification Context

Section:
FIXED CONSTRUCTIONS
Class:
BUILDING
Subclass:
FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS

6 direct subcodes

Child Classifications

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  • E04F 13/073 for particular building parts, e.g. corners or columns
  • E04F 13/074 for accommodating service installations or utility lines, e.g. heating conduits, electrical lines, lighting devices or service outlets
  • E04F 13/075 for insulation or surface protection, e.g. against noise or impact
  • E04F 13/076 characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
  • E04F 13/077 composed of several layers, e.g. sandwich panels
  • E04F 13/078 Stretched foil- or web-like elements attached with edge gripping devices

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