- 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: 1529
10-year publication summary
|
137
|
115
|
168
|
143
|
138
|
143
|
144
|
107
|
103
|
56
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3498 |
69 |
| DIRTT Environmental Solutions, Ltd. | 306 |
62 |
| Cemco, LLC | 127 |
58 |
| Steelcase Inc. | 1338 |
45 |
| Knauf Gips KG | 600 |
40 |
| Krueger International, Inc. | 371 |
24 |
| DIRTT Environmental Solutions Inc. | 59 |
21 |
| Saint-Gobain Placo | 228 |
18 |
| Yoshino Gypsum Co., Ltd. | 251 |
17 |
| Won-Door Corporation | 108 |
16 |
| Okamura Corporation | 503 |
15 |
| Saint-Gobain Placo SAS | 152 |
15 |
| Fellowes, Inc. | 358 |
14 |
| Knoll, Inc. | 367 |
14 |
| molo design, ltd. | 46 |
14 |
| MillerKnoll, Inc. | 523 |
14 |
| Allsteel Inc. | 20 |
13 |
| United States Gypsum Company | 913 |
13 |
| Innovative Building Technologies, LLC | 68 |
12 |
| Maars Holding B.V. | 42 |
12 |
| Other owners | 1023 |