- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 2/90 - Curtain walls comprising panels directly attached to the structure
Patent holdings for IPC class E04B 2/90
Total number of patents in this class: 179
10-year publication summary
|
18
|
12
|
15
|
18
|
26
|
15
|
8
|
20
|
6
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3433 |
18 |
| Illinois Tool Works Inc. | 11370 |
7 |
| Innovative Building Technologies, LLC | 67 |
5 |
| Talon Wall Holdings LLC | 28 |
4 |
| Inovues, Inc. | 11 |
4 |
| DuPont Safety & Construction, Inc. | 669 |
4 |
| DDP Specialty Electronic Materials US, LLC | 800 |
4 |
| Gregory P. Luth & Associates, Inc. | 12 |
3 |
| LIXIL Corporation | 689 |
3 |
| Reflection Window Company, LLC | 9 |
3 |
| Saint-Gobain Isover | 627 |
3 |
| Schuco International KG | 189 |
3 |
| Fremarq Innovations, Inc. | 12 |
3 |
| Blach Construction Company | 9 |
3 |
| Laurens Leonard J. Claeys | 14 |
3 |
| Nausikaa Els P. Claeys | 14 |
3 |
| Stephanie Catharina R. Claeys | 13 |
3 |
| Kingspan Holdings (IRL) Limited | 431 |
2 |
| Lenmak Exterior Innovations Inc. | 8 |
2 |
| Pella Corporation | 226 |
2 |
| Other owners | 97 |