- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 111/28 - Fire resistance
Patent holdings for IPC class C04B 111/28
Total number of patents in this class: 400
10-year publication summary
|
25
|
41
|
39
|
48
|
33
|
28
|
46
|
31
|
33
|
17
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saint-Gobain Placo | 220 |
13 |
| United States Gypsum Company | 913 |
10 |
| The Intellectual Gorilla GmbH | 28 |
9 |
| BASF SE | 20874 |
7 |
| Hilti Aktiengesellschaft | 3483 |
7 |
| Sika Technology AG | 2855 |
7 |
| Georgia-Pacific Gypsum LLC | 219 |
5 |
| Geopolymer Solutions, LLC | 16 |
5 |
| Parexgroup SA | 34 |
5 |
| Saint-Gobain Isover | 632 |
5 |
| Synthos S.A. | 47 |
5 |
| Evonik Operations GmbH | 4073 |
5 |
| Gold Bond Building Products, LLC | 193 |
5 |
| O'daniels, LLC. | 58 |
5 |
| Evonik Degussa GmbH | 1537 |
4 |
| Armstrong World Industries, Inc. | 356 |
4 |
| Johns Manville | 955 |
4 |
| Imertech SAS | 229 |
4 |
| First Point A.S. | 36 |
4 |
| The Boeing Company | 20031 |
3 |
| Other owners | 284 |