- All sections
- C - Chemistrymetallurgy
- C01C - Ammoniacyanogencompounds thereof
- C01C 1/22 - Sulfites of ammonium
Patent holdings for IPC class C01C 1/22
Total number of patents in this class: 21
10-year publication summary
|
1
|
0
|
0
|
0
|
5
|
1
|
0
|
2
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ThioSolv, LLC | 24 |
4 |
| Advansix Resins & Chemicals LLC | 305 |
2 |
| Andgar Corporation | 5 |
2 |
| DVO, Inc. | 15 |
2 |
| Washington State University | 492 |
2 |
| Evonik Degussa GmbH | 1436 |
1 |
| Uop LLC | 4275 |
1 |
| Stamicarbon B.V. | 307 |
1 |
| American River Nutrition, LLC | 18 |
1 |
| Next Generation Elements GmbH | 11 |
1 |
| Arelac, Inc. | 111 |
1 |
| Clarke Rajchel Engineering, LLC | 1 |
1 |
| Bighorn Analytics, LLC | 2 |
1 |
| Ammoniq Solutions AB | 1 |
1 |
| Other owners | 0 |