- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 34/22 - Obtaining vanadium
Patent holdings for IPC class C22B 34/22
Total number of patents in this class: 230
10-year publication summary
|
11
|
18
|
23
|
7
|
15
|
19
|
18
|
27
|
15
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Avanti Materials Ltd | 10 |
10 |
| Chevron U.S.A. Inc. | 3966 |
9 |
| Coogee Titanium Pty Ltd | 12 |
9 |
| Korea Institute of Geoscience and Mineral Resources | 240 |
7 |
| Tivan Limited | 10 |
7 |
| Institute of Process Engineering, Chinese Academy of Sciences | 295 |
6 |
| ENI S.p.A. | 1260 |
5 |
| Northeastern University | 539 |
4 |
| Pangang Group Research Institute Co., Ltd. | 22 |
4 |
| First Vanadium Corp. | 5 |
4 |
| Hebei Zhongke Tongchuang Vanadium &titanium Technology Co., Ltd. | 4 |
4 |
| le System Co., Ltd. | 13 |
3 |
| Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. | 71 |
3 |
| TNG Limited | 5 |
3 |
| Worcester Polytechnic Institute | 512 |
3 |
| Nihon Kanki Industry Co., Ltd. | 6 |
3 |
| SMS Group Process Technologies GmbH | 3 |
3 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3035 |
3 |
| Central America Nickel Inc. | 10 |
3 |
| Cinis Fertilizer AB | 14 |
3 |
| Other owners | 134 |