- All sections
- E - Fixed constructions
- E04C - Structural elementsbuilding 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: 156
10-year publication summary
|
18
|
19
|
18
|
11
|
14
|
12
|
14
|
15
|
15
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cast Stonescapes, LLC | 7 |
5 |
| Arktura, LLC | 161 |
3 |
| CFS Concrete Forming Systems Inc. | 94 |
3 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4117 |
3 |
| Renco World Corporation | 15 |
3 |
| University of Canterbury | 36 |
3 |
| Baustoffwerke Gebhart & Soehne GmbH & Co. KG | 23 |
2 |
| The Board of Trustees of the University of Alabama | 433 |
2 |
| Hobi Endustriyel Urun Tasarim Uygulama Uretim Ithalat Ihracat Limited Sirketi | 3 |
2 |
| Keiwa Inc. | 202 |
2 |
| Owens Corning Intellectual Capital, LLC | 1725 |
2 |
| Tuscan Stoneworx USA, LLC | 11 |
2 |
| Zospeum Holding B.V. | 4 |
2 |
| SHL Medical AG | 1417 |
2 |
| LLC "ecocuber" | 2 |
2 |
| Tectonic Facades Limited | 12 |
2 |
| A/S Graasten Teglværk | 2 |
2 |
| Vistafolia Limited | 11 |
2 |
| Valeurs Alpines | 5 |
2 |
| Gablok SA | 2 |
2 |
| Other owners | 108 |