- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 25/28 - Ammonium phosphates
Patent holdings for IPC class C01B 25/28
Total number of patents in this class: 56
10-year publication summary
|
5
|
6
|
2
|
4
|
4
|
3
|
2
|
9
|
5
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Easymining Sweden AB | 74 |
9 |
| Peregrine Hydrogen Inc. | 18 |
4 |
| Ecophos | 7 |
3 |
| Wisconsin Alumni Research Foundation | 3900 |
2 |
| Nutrient Recovery & Upcycling, LLC | 7 |
2 |
| Liquigro Holdings (Proprietary) Limited | 3 |
2 |
| Hubei Forbon Technology Co., Ltd. | 42 |
2 |
| Susphos B.V. | 8 |
2 |
| 3m Innovative Properties Company | 17484 |
1 |
| Altmerge, LLC | 9 |
1 |
| Bromine Compounds Ltd. | 185 |
1 |
| Chemetics Inc. | 67 |
1 |
| CJ Cheiljedang Corporation | 3661 |
1 |
| Contemporary Amperex Technology Co., Limited | 10065 |
1 |
| Csir | 177 |
1 |
| Fluor Technologies Corporation | 360 |
1 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1268 |
1 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1226 |
1 |
| Kunming University of Science and Technology | 245 |
1 |
| Miyoshi Oil & Fat Co., Ltd. | 110 |
1 |
| Other owners | 18 |