IPC Main Group
E04B 5/00 Floors; Floor construction with regard to insulation; Connections specially adapted therefor
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- BUILDING
- Subclass:
- GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
Related Keywords
CONNECTIONS for ceilings or floorsFILLING in floorsFLOOR(S) of building structuresHEAT insulating of building structuresINSULATION of ceilings or floorsreducing NOISE by insulating building structuresfloor structures using SLABSinsulating building structuresprotection of building structures against VIBRATIONS
6 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- E04B 5/02 Load-carrying floor structures formed substantially of prefabricated units
- E04B 5/16 Load-carrying floor structures wholly or partly cast or similarly formed
- E04B 5/43 Floor structures of extraordinary design; Features relating to the elastic stability; Floor structures specially designed for resting on columns only, e.g. mushroom floors
- E04B 5/44 Floors composed of stones, mortar, and reinforcing elements
- E04B 5/46 Special adaptation of floors for transmission of light, e.g. by inserts of glass
- E04B 5/48 Special adaptations of floors for incorporating ducts, e.g. for heating or ventilating
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