- All sections
- E - Fixed constructions
- E04B - General building constructions; walls, e.g. partitions; roofs; floors; ceilings; insulation or other protection of buildings
- E04B 2/74 - Removable non-load-bearing partitions; Partitions with a free upper edge
Patent holdings for IPC class E04B 2/74
Total number of patents in this class: 1466
10-year publication summary
|
151
|
164
|
129
|
186
|
159
|
155
|
158
|
165
|
107
|
44
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| DIRTT Environmental Solutions, Ltd. | 329 |
68 |
| Hilti Aktiengesellschaft | 3227 |
67 |
| Cemco, LLC | 123 |
52 |
| Steelcase Inc. | 1361 |
43 |
| Knauf Gips KG | 534 |
30 |
| Krueger International, Inc. | 378 |
24 |
| DIRTT Environmental Solutions Inc. | 59 |
21 |
| Maars Holding B.V. | 46 |
16 |
| Won-Door Corporation | 114 |
16 |
| Okamura Corporation | 510 |
15 |
| Allsteel Inc. | 21 |
14 |
| Innovative Building Technologies, LLC | 70 |
14 |
| Knoll, Inc. | 372 |
14 |
| molo design, ltd. | 39 |
14 |
| Saint-Gobain Placo SAS | 139 |
14 |
| Yoshino Gypsum Co., Ltd. | 224 |
14 |
| MillerKnoll, Inc. | 490 |
14 |
| Saint-Gobain Placo | 176 |
12 |
| LG Electronics Inc. | 69257 |
9 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
9 |
| Other owners | 986 |