- All sections
- C - Chemistrymetallurgy
- C01D - Compounds of alkali metals, i.e. lithium, sodium, potassium, rubidium, caesium, or francium
- C01D 1/28 - PurificationSeparation
Patent holdings for IPC class C01D 1/28
Total number of patents in this class: 36
10-year publication summary
|
4
|
2
|
1
|
3
|
2
|
0
|
1
|
9
|
8
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nemaska Lithium Inc. | 73 |
6 |
| Pukyong National University Industry-University Cooperation Foundation | 337 |
4 |
| Treetotextile AB | 53 |
4 |
| Korea Institute of Geoscience and Mineral Resources | 240 |
3 |
| Albemarle Corporation | 492 |
2 |
| The George Washington University | 438 |
2 |
| Graymont Western US Inc. | 6 |
2 |
| Air Products and Chemicals, Inc. | 1423 |
1 |
| Enviro Water Minerals Company, Inc. | 24 |
1 |
| Industry Foundation of Chonnam National University | 649 |
1 |
| Ionic Solutions Ltd. | 24 |
1 |
| Korea Zinc Co., Ltd. | 89 |
1 |
| Phinergy Ltd. | 94 |
1 |
| Reed Advanced Materials Pty Ltd | 12 |
1 |
| Sumitomo Metal Mining Co., Ltd. | 1779 |
1 |
| Unid Co., Ltd. | 14 |
1 |
| Form Energy, Inc. | 215 |
1 |
| Ionic Solutions Ltd. | 3 |
1 |
| Green Etching S.r.l. | 4 |
1 |
| Kemco | 36 |
1 |
| Other owners | 0 |