- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 17/64 - ThiosulfatesDithionitesPolythionates
Patent holdings for IPC class C01B 17/64
Total number of patents in this class: 79
10-year publication summary
|
3
|
7
|
5
|
8
|
10
|
6
|
3
|
6
|
8
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hope Medical Enterprises, Inc. | 53 |
17 |
| Tessenderlo Kerley, Inc. | 134 |
8 |
| ThioSolv, LLC | 20 |
7 |
| Tessenderlo Group, NV | 161 |
6 |
| Bill Archer LLC | 6 |
6 |
| Clarke Rajchel Engineering, LLC | 3 |
3 |
| Merichem Company | 28 |
2 |
| Mytech Co., Ltd. | 22 |
2 |
| Fennec Pharmaceuticals Inc. | 25 |
2 |
| Haldor Topsøe A/S | 668 |
2 |
| Rocher Manganese, Inc. | 6 |
2 |
| Zaozhuang Dexin Environmental Protection Technology Ltd. | 2 |
2 |
| Ceres Technology, LLC | 3 |
2 |
| Merichem Technologies, LLC | 59 |
2 |
| Eastman Kodak Company | 3018 |
1 |
| Nichia Corporation | 3564 |
1 |
| Merz North America, Inc. | 26 |
1 |
| Nanjing Tech University | 241 |
1 |
| Osaka University | 3309 |
1 |
| Saint-Gobain Centre de Recherches et d'Etudes Europeen | 486 |
1 |
| Other owners | 10 |