- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 11/00 - Calcium sulfate cements
Patent holdings for IPC class C04B 11/00
Total number of patents in this class: 243
10-year publication summary
|
24
|
12
|
6
|
15
|
12
|
12
|
8
|
11
|
13
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| United States Gypsum Company | 905 |
42 |
| Yoshino Gypsum Co., Ltd. | 253 |
15 |
| Knauf Gips KG | 617 |
13 |
| CertainTeed Gypsum, Inc. | 213 |
11 |
| Saint-Gobain Placo SAS | 158 |
11 |
| Georgia-Pacific Gypsum LLC | 218 |
9 |
| Saint-Gobain Placo | 244 |
9 |
| Gold Bond Building Products, LLC | 207 |
8 |
| ThyssenKrupp AG | 3336 |
6 |
| ThyssenKrupp Industrial Solutions AG | 632 |
6 |
| BPB Limited | 46 |
5 |
| Holcim Technology Ltd. | 551 |
5 |
| BASF SE | 21087 |
4 |
| California Institute of Technology | 3997 |
4 |
| Tokuyama Corporation | 1430 |
4 |
| Brimstone Energy Inc. | 21 |
4 |
| Ecolab USA Inc. | 5598 |
3 |
| Henry Company, LLC | 231 |
3 |
| Roman Cement, LLC | 48 |
3 |
| Knauf Gips KG | 80 |
3 |
| Other owners | 75 |