- All sections
- C - Chemistry; metallurgy
- C04B - Lime; magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone; ceramics; refractories; treatment 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: 65
10-year publication summary
1
|
5
|
0
|
0
|
4
|
3
|
7
|
9
|
9
|
9
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
United States Gypsum Company | 1019 |
4 |
Guangdong Brunp Recycling Technology Co., Ltd | 674 |
3 |
Hunan Brunp Recycling Technology Co., Ltd. | 622 |
3 |
Yoshino Gypsum Co., Ltd. | 224 |
3 |
Beijing New Building Materials Public Limited Company | 79 |
3 |
Andritz AG | 218 |
2 |
Knauf Gips KG | 534 |
2 |
Saudi Arabian Mining Company (Ma'aden) | 9 |
2 |
Tokuyama Corporation | 1248 |
2 |
Jiangsu EFFUL Science and Technology CO.,LTD | 13 |
2 |
Betolar Oy | 18 |
2 |
Yichang Brunp Recycling Technology Co., Ltd. | 15 |
2 |
Georgia-Pacific Gypsum LLC | 204 |
1 |
Andritz Energy & Environment GmbH | 3 |
1 |
Central South University | 364 |
1 |
Centro de Investigaciones Energeticas, Medioambientales y Tecnologicas (ciemat) | 51 |
1 |
Claudius Peters Technologies GmbH | 11 |
1 |
Consejo Superior de Investigaciones Cientificas (csic) | 1254 |
1 |
Continental Building Products Operating Company, LLC | 10 |
1 |
Hyundai Oilbank Co., Ltd. | 18 |
1 |
Other owners | 27 |