- 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: 1512
10-year publication summary
|
164
|
129
|
186
|
159
|
155
|
161
|
170
|
121
|
104
|
43
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3451 |
68 |
| DIRTT Environmental Solutions, Ltd. | 311 |
67 |
| Cemco, LLC | 127 |
58 |
| Steelcase Inc. | 1340 |
45 |
| Knauf Gips KG | 583 |
36 |
| Krueger International, Inc. | 367 |
24 |
| DIRTT Environmental Solutions Inc. | 59 |
21 |
| Saint-Gobain Placo | 214 |
18 |
| Yoshino Gypsum Co., Ltd. | 250 |
17 |
| Won-Door Corporation | 107 |
16 |
| Okamura Corporation | 504 |
15 |
| Saint-Gobain Placo SAS | 151 |
15 |
| Fellowes, Inc. | 358 |
14 |
| Knoll, Inc. | 368 |
14 |
| molo design, ltd. | 41 |
14 |
| MillerKnoll, Inc. | 517 |
14 |
| Allsteel Inc. | 20 |
13 |
| United States Gypsum Company | 921 |
13 |
| Innovative Building Technologies, LLC | 67 |
12 |
| Maars Holding B.V. | 42 |
12 |
| Other owners | 1006 |