- All sections
- E - Fixed constructions
- E04B - General building constructionswalls, e.g. partitionsroofsfloorsceilingsinsulation 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: 1316
10-year publication summary
|
113
|
156
|
164
|
196
|
164
|
123
|
139
|
111
|
103
|
32
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3459 |
167 |
| Cemco, LLC | 127 |
74 |
| Schul International Co., LLC | 81 |
27 |
| Sekisui Chemical Co., Ltd. | 3378 |
27 |
| Armstrong World Industries, Inc. | 353 |
23 |
| Specified Technologies Inc. | 82 |
21 |
| Yoshino Gypsum Co., Ltd. | 250 |
21 |
| United States Gypsum Company | 910 |
20 |
| 3m Innovative Properties Company | 17855 |
17 |
| Reliance Worldwide Corporation | 326 |
17 |
| Sika Technology AG | 2846 |
16 |
| Rockwool A/S | 780 |
13 |
| Johns Manville | 955 |
9 |
| Louisiana-Pacific Corporation | 256 |
9 |
| Nichias Corporation | 392 |
9 |
| Owens Corning Intellectual Capital, LLC | 1616 |
9 |
| JSR Corporation | 2507 |
8 |
| InPro Corporation | 125 |
8 |
| Bmic LLC | 716 |
8 |
| Denka Company Limited | 2536 |
7 |
| Other owners | 806 |