- 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: 1582
10-year publication summary
|
130
|
186
|
159
|
155
|
161
|
170
|
125
|
116
|
97
|
43
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3616 |
73 |
| DIRTT Environmental Solutions, Ltd. | 309 |
65 |
| Cemco, LLC | 130 |
58 |
| Steelcase Inc. | 1295 |
47 |
| Knauf Gips KG | 634 |
46 |
| Krueger International, Inc. | 380 |
25 |
| DIRTT Environmental Solutions Inc. | 59 |
21 |
| Yoshino Gypsum Co., Ltd. | 265 |
20 |
| Saint-Gobain Placo | 263 |
19 |
| Saint-Gobain Placo SAS | 156 |
18 |
| Okamura Corporation | 497 |
16 |
| Fellowes, Inc. | 366 |
15 |
| United States Gypsum Company | 907 |
15 |
| Knoll, Inc. | 363 |
14 |
| Won-Door Corporation | 101 |
14 |
| MillerKnoll, Inc. | 544 |
14 |
| Innovative Building Technologies, LLC | 64 |
12 |
| LG Electronics Inc. | 75160 |
11 |
| Maars Holding B.V. | 37 |
10 |
| Allsteel LLC | 15 |
10 |
| Other owners | 1059 |