- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 25/02 - Preparation of phosphorus
Patent holdings for IPC class C01B 25/02
Total number of patents in this class: 77
10-year publication summary
|
4
|
2
|
8
|
9
|
12
|
6
|
4
|
4
|
5
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Lanxess Deutschland GmbH | 1141 |
4 |
| Radmat AG | 20 |
4 |
| Universidade Estadual de Campinas—unicamp | 4 |
4 |
| Institut National de La Recherche Scientifique | 261 |
3 |
| Korea Research Institute of Standards and Science | 692 |
3 |
| Tohoku University | 2981 |
3 |
| Massachusetts Institute of Technology | 10254 |
2 |
| Northwestern University | 3546 |
2 |
| The Florida International University Board of Trustees | 673 |
2 |
| Kronos International, Inc. | 113 |
2 |
| National University of Singapore | 2586 |
2 |
| China ENFI Engineering Corp. | 112 |
2 |
| Sichuan Chuanheng Chemical Corporation | 2 |
2 |
| Black P2 (USA) INC. | 2 |
2 |
| Sinosteel Nanjing Advanced Materials Research Institute Co., Ltd. | 4 |
2 |
| Novaphos Phosphate Technology LLC | 5 |
2 |
| BASF SE | 21308 |
1 |
| Sumitomo Chemical Company, Limited | 8968 |
1 |
| The Trustees of the University of Pennsylvania | 4416 |
1 |
| Altmerge, LLC | 9 |
1 |
| Other owners | 32 |