- 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: 1357
10-year publication summary
|
133
|
138
|
173
|
140
|
109
|
125
|
101
|
102
|
66
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hilti Aktiengesellschaft | 3566 |
175 |
| Cemco, LLC | 129 |
77 |
| Sekisui Chemical Co., Ltd. | 3543 |
30 |
| Schul International Co., LLC | 82 |
27 |
| Specified Technologies Inc. | 82 |
22 |
| United States Gypsum Company | 902 |
21 |
| Yoshino Gypsum Co., Ltd. | 262 |
21 |
| Armstrong World Industries, Inc. | 352 |
19 |
| Reliance Worldwide Corporation | 341 |
18 |
| 3m Innovative Properties Company | 17576 |
17 |
| Sika Technology AG | 2933 |
16 |
| Rockwool A/S | 815 |
14 |
| Owens Corning Intellectual Capital, LLC | 1642 |
11 |
| Louisiana-Pacific Corporation | 292 |
10 |
| InPro Corporation | 122 |
9 |
| Johns Manville | 933 |
9 |
| Nichias Corporation | 398 |
9 |
| AFI Licensing LLC | 235 |
8 |
| Bmic LLC | 789 |
8 |
| Saint-Gobain Isover | 665 |
7 |
| Other owners | 829 |