- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 25/44 - Metaphosphates
Patent holdings for IPC class C01B 25/44
Total number of patents in this class: 21
10-year publication summary
|
1
|
2
|
2
|
1
|
0
|
2
|
0
|
2
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Massachusetts Institute of Technology | 10322 |
3 |
| Chemische Fabrik Budenheim KG | 207 |
2 |
| The University of Tokyo | 4403 |
2 |
| Wengfu Dazhou Chemical Co., Ltd. | 4 |
2 |
| Weng Fu (Group) Co., Ltd. | 3 |
2 |
| Corning Incorporated | 10558 |
1 |
| Cabot Norit Americas, Inc. | 17 |
1 |
| Faradion Limited | 68 |
1 |
| Guangdong Brunp Recycling Technology Co., Ltd | 1273 |
1 |
| Hunan Brunp Recycling Technology Co., Ltd. | 1227 |
1 |
| Norit Americas Inc. | 10 |
1 |
| Presafer (Qingyuan) Phosphor Chemical Company Limited | 8 |
1 |
| Stellar Materials Incorporated | 5 |
1 |
| Sunny Delight Beverages Co. | 43 |
1 |
| LG Energy Solution, Ltd. | 19725 |
1 |
| Other owners | 0 |