E04 BUILDING
Classification Context
- Section:
- FIXED CONSTRUCTIONS
- Class:
- BUILDING
Description
Class E04 encompasses the structural design, construction methods, and physical components of buildings and permanent structures. It covers load-bearing systems (foundations, walls, roofs, floors), structural frames, and integrated building elements including doors, windows, and interior finishing systems. The classification includes both traditional construction techniques and modern prefabrication methods, as well as specialized building systems for particular purposes such as movable or temporary structures. Adjacent classes in Section E address specific infrastructure (roads, railways, hydraulic works), while E04 focuses specifically on enclosed or semi-enclosed structures intended for human occupancy or use.
Related Keywords
6 direct subcodes
Child Classifications
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- E04B GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04C STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04D ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04F FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
- E04G SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04H BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
Top Applicants
Top 10 applicants by patent filings, 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