- 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 11/02 - Dehydrating gypsum
Patent holdings for IPC class C04B 11/02
Total number of patents in this class: 39
10-year publication summary
3
|
2
|
3
|
2
|
5
|
1
|
4
|
1
|
3
|
2
|
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 |
10 |
CertainTeed Gypsum, Inc. | 180 |
2 |
Holcim Technology Ltd. | 868 |
2 |
Knauf Gips KG | 534 |
2 |
Yoshino Gypsum Co., Ltd. | 224 |
2 |
Tapered End, LP | 3 |
2 |
Mitsubishi Power, Ltd. | 1680 |
2 |
Georgia-Pacific Gypsum LLC | 204 |
1 |
Claudius Peters Projects GmbH | 20 |
1 |
Claudius Peters Technologies GmbH | 11 |
1 |
CSR Building Products Limited | 49 |
1 |
Guangdong Brunp Recycling Technology Co., Ltd | 674 |
1 |
Gypsum Technologies Inc. | 9 |
1 |
Hunan Brunp Recycling Technology Co., Ltd. | 622 |
1 |
The Nugyp Corp. | 1 |
1 |
Saudi Arabian Mining Company (Ma'aden) | 9 |
1 |
Schenck Process LLC | 76 |
1 |
ThyssenKrupp AG | 3086 |
1 |
ThyssenKrupp Industrial Solutions AG | 729 |
1 |
Tsukishima Kikai Co., Ltd. | 118 |
1 |
Other owners | 4 |