- All sections
- E - Fixed constructions
- E04B - General building constructions; walls, e.g. partitions; roofs; floors; ceilings; insulation or other protection of buildings
- E04B 1/94 - Protection against other undesired influences or dangers against fire
Patent holdings for IPC class E04B 1/94
Total number of patents in this class: 1246
10-year publication summary
|
98
|
113
|
156
|
164
|
195
|
164
|
120
|
137
|
104
|
24
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3227 |
163 |
| Cemco, LLC | 123 |
66 |
| Schul International Co., LLC | 78 |
27 |
| Sekisui Chemical Co., Ltd. | 3159 |
25 |
| 3m Innovative Properties Company | 18406 |
22 |
| Specified Technologies Inc. | 80 |
21 |
| United States Gypsum Company | 1019 |
21 |
| Armstrong World Industries, Inc. | 347 |
20 |
| Yoshino Gypsum Co., Ltd. | 224 |
18 |
| Reliance Worldwide Corporation | 303 |
16 |
| Sika Technology AG | 2650 |
16 |
| Rockwool A/S | 753 |
13 |
| Johns Manville | 980 |
9 |
| InPro Corporation | 126 |
8 |
| Nichias Corporation | 386 |
8 |
| JSR Corporation | 2476 |
7 |
| Denka Company Limited | 2189 |
7 |
| Holcim Technology Ltd. | 868 |
7 |
| Owens Corning Intellectual Capital, LLC | 1456 |
7 |
| Saint-Gobain Isover | 603 |
7 |
| Other owners | 758 |