- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation or other protection of buildings
- E04B 2/74 - Removable non-load-bearing partitionsPartitions with a free upper edge
Patent holdings for IPC class E04B 2/74
Total number of patents in this class: 1544
10-year publication summary
|
115
|
168
|
143
|
138
|
143
|
144
|
110
|
103
|
79
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3541 |
73 |
| DIRTT Environmental Solutions, Ltd. | 311 |
63 |
| Cemco, LLC | 129 |
58 |
| Steelcase Inc. | 1308 |
45 |
| Knauf Gips KG | 620 |
42 |
| Krueger International, Inc. | 372 |
25 |
| DIRTT Environmental Solutions Inc. | 59 |
21 |
| Saint-Gobain Placo | 248 |
19 |
| Yoshino Gypsum Co., Ltd. | 256 |
19 |
| Won-Door Corporation | 104 |
16 |
| Okamura Corporation | 499 |
15 |
| Saint-Gobain Placo SAS | 156 |
15 |
| Fellowes, Inc. | 362 |
14 |
| Knoll, Inc. | 368 |
14 |
| MillerKnoll, Inc. | 528 |
14 |
| United States Gypsum Company | 898 |
13 |
| Innovative Building Technologies, LLC | 67 |
12 |
| LG Electronics Inc. | 74135 |
11 |
| Maars Holding B.V. | 38 |
11 |
| Allsteel LLC | 15 |
10 |
| Other owners | 1034 |