- 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: 53
10-year publication summary
|
5
|
6
|
2
|
4
|
4
|
3
|
2
|
9
|
5
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Easymining Sweden AB | 70 |
8 |
| Peregrine Hydrogen Inc. | 17 |
4 |
| Ecophos | 7 |
3 |
| Wisconsin Alumni Research Foundation | 3892 |
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 | 17492 |
1 |
| Altmerge, LLC | 9 |
1 |
| Bromine Compounds Ltd. | 186 |
1 |
| Chemetics Inc. | 68 |
1 |
| CJ Cheiljedang Corporation | 3616 |
1 |
| Contemporary Amperex Technology Co., Limited | 9496 |
1 |
| Csir | 177 |
1 |
| Fluor Technologies Corporation | 366 |
1 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1256 |
1 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1220 |
1 |
| Kunming University of Science and Technology | 236 |
1 |
| Miyoshi Oil & Fat Co., Ltd. | 105 |
1 |
| Other owners | 16 |