- 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 22/08 - Acids or salts thereof
Patent holdings for IPC class C04B 22/08
Total number of patents in this class: 312
10-year publication summary
15
|
16
|
23
|
19
|
17
|
17
|
19
|
30
|
28
|
11
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Denka Company Limited | 2189 |
53 |
Denki Kagaku Kogyo Kabushiki Kaisha | 680 |
28 |
Yara International ASA | 753 |
14 |
Halliburton Energy Services, Inc. | 20165 |
10 |
Chryso | 112 |
7 |
Construction Research & Technology GmbH | 640 |
7 |
Solidia Technologies, Inc. | 113 |
7 |
Tokuyama Corporation | 1248 |
6 |
Holcim Technology Ltd. | 868 |
5 |
Saint-Gobain Placo | 176 |
5 |
Sika Technology AG | 2650 |
5 |
U.S. Concrete, Inc. | 14 |
5 |
Geopolymer Solutions, LLC | 16 |
4 |
Lafarge | 137 |
4 |
Mitsubishi Materials Corporation | 2378 |
4 |
The Regents of the University of California | 18943 |
3 |
Huris Co., Ltd. | 3 |
3 |
Obayashi Corporation | 55 |
3 |
Sumitomo Osaka Cement Co., Ltd. | 783 |
3 |
Taiheiyo Cement Corporation | 237 |
3 |
Other owners | 133 |