- All sections
- E - Fixed constructions
- E04C - Structural elements; building materials
- E04C 1/40 - Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
Patent holdings for IPC class E04C 1/40
Total number of patents in this class: 148
10-year publication summary
|
15
|
30
|
18
|
19
|
18
|
11
|
14
|
12
|
13
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Arktura, LLC | 123 |
3 |
| CFS Concrete Forming Systems Inc. | 98 |
3 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
3 |
| Renco World Corporation | 15 |
3 |
| University of Canterbury | 29 |
3 |
| Since 1903, Inc. | 7 |
3 |
| Baustoffwerke Gebhart & Soehne GmbH & Co. KG | 16 |
2 |
| The Board of Trustees of the University of Alabama | 327 |
2 |
| Hobi Endustriyel Urun Tasarim Uygulama Uretim Ithalat Ihracat Limited Sirketi | 3 |
2 |
| Holcim Technology Ltd. | 868 |
2 |
| Stealthcase Oy | 17 |
2 |
| Zospeum Holding B.V. | 5 |
2 |
| SHL Medical AG | 1049 |
2 |
| LLC "ecocuber" | 2 |
2 |
| Tectonic Facades Limited | 11 |
2 |
| A/S Graasten Teglværk | 2 |
2 |
| Vistafolia Limited | 12 |
2 |
| Gablok SA | 2 |
2 |
| Tremco CPG Inc. | 288 |
2 |
| Tremco Acquisition, LLC | 29 |
2 |
| Other owners | 102 |