- All sections
- C - Chemistrymetallurgy
- C04B - Limemagnesiaslagcementscompositions thereof, e.g. mortars, concrete or like building materialsartificial stoneceramicsrefractoriestreatment of natural stone
- C04B 11/26 - Calcium sulfate cements starting from phosphogypsum or from waste, e.g. purification products of smoke
Patent holdings for IPC class C04B 11/26
Total number of patents in this class: 88
10-year publication summary
|
5
|
0
|
0
|
4
|
3
|
7
|
9
|
12
|
25
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Knauf Gips KG | 602 |
5 |
| Tokuyama Corporation | 1383 |
4 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1227 |
3 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1196 |
3 |
| United States Gypsum Company | 903 |
3 |
| Yoshino Gypsum Co., Ltd. | 250 |
3 |
| Beijing New Building Materials Public Limited Company | 96 |
3 |
| Gold Bond Building Products, LLC | 195 |
3 |
| Hubei Juhai Environmental Technology Co., Ltd | 10 |
3 |
| Andritz AG | 232 |
2 |
| Saint-Gobain Placo | 223 |
2 |
| Saudi Arabian Mining Company (Ma'aden) | 9 |
2 |
| Jiangsu EFFUL Science and Technology CO.,LTD | 7 |
2 |
| HeNan Polytechnic University | 97 |
2 |
| Betolar Oy | 22 |
2 |
| Yichang Brunp Recycling Technology Co., Ltd. | 39 |
2 |
| Schlumberger Technology Corporation | 10673 |
1 |
| Kao Corporation | 4959 |
1 |
| Georgia-Pacific Gypsum LLC | 219 |
1 |
| Andritz Energy & Environment GmbH | 3 |
1 |
| Other owners | 40 |