- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 2/88 - Curtain walls
Patent holdings for IPC class E04B 2/88
Total number of patents in this class: 465
10-year publication summary
|
45
|
57
|
43
|
36
|
38
|
25
|
33
|
29
|
26
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3668 |
26 |
| Brunkeberg Systems AB | 27 |
9 |
| Talon Wall Holdings LLC | 31 |
8 |
| Precision Wall Systems, Inc. | 18 |
8 |
| Shenyang Yuanda Aluminium Industry Engineering Co., Ltd. | 16 |
7 |
| Cemco, LLC | 132 |
7 |
| Illinois Tool Works Inc. | 11863 |
6 |
| Kawneer Company, Inc. | 134 |
6 |
| Oldcastle BuildingEnvelope, Inc. | 49 |
6 |
| Specified Technologies Inc. | 87 |
6 |
| Invent to Build Inc. | 16 |
6 |
| Inovues, Inc. | 14 |
6 |
| Grand Facade Decoration Engineering Co., Ltd. | 15 |
6 |
| Hydronic Shell Technologies, Inc. | 7 |
6 |
| Advanced Architectural Products, LLC | 78 |
5 |
| Saint-Gobain Glass France | 3239 |
5 |
| Technical Glass Products | 6 |
5 |
| Innovation Glass, LLC | 20 |
5 |
| Gregory P. Luth & Associates, Inc. | 13 |
4 |
| Mull-it-over Products | 5 |
4 |
| Other owners | 324 |