CPC Main Group
E04G 11/00 Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
4 direct subcodes
Child Classifications
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- E04G 11/02 for rooms as a whole , whole storeys, or whole buildings
- E04G 11/04 for structures of spherical, spheroid or similar shape, or for cupola structures of circular or polygonal horizontal or vertical section; Inflatable forms (connection of valves to inflatable elastic bodies B60C29/00 )
- E04G 11/06 for walls, e.g. curved (E04G11/04 takes precedence)
- E04G 11/36 for floors, ceilings, or roofs of plane or curved surfaces
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