CPC Subgroup Additional Only
E04B 2002/0254 Full Title
Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls (connections for building structures in general E04B1/38; insulation for buildings in general E04B1/62; building elements of relatively thin form for parts of buildings E04C2/00) > built-up from layers of building elements
Top Applicants
Top 10 applicants by patent filingsfor class E04, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION 1,675
- CHINA MCC17 GROUP COMPANY 1,593
- ZHEJIANG YASHA DECORATION COMPANY 1,551
- SGCC(STATE GRID CORPORATION OF CHINA) 1,297
- GOLD MANTIS FINE DECORATION TECHNOLOGY (SUZHOU) COMPANY 1,212
- SHENYANG JIANZHU UNIVERSITY 926
- VAELINGE INNOVATION SE 901
- CHINA MCC5 GROUP CORPORATION 894
- VKR HOLDING DK 854
- SHANGHAI BAOYE GROUP CORPORATION 753