- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 34/22 - Obtaining vanadium
Patent holdings for IPC class C22B 34/22
Total number of patents in this class: 214
10-year publication summary
9
|
11
|
18
|
23
|
7
|
15
|
19
|
18
|
27
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Chevron U.S.A. Inc. | 3774 |
9 |
Coogee Titanium Pty Ltd | 12 |
9 |
Avanti Materials Ltd | 9 |
9 |
Korea Institute of Geoscience and Mineral Resources | 222 |
7 |
Tivan Limited | 12 |
7 |
ENI S.p.A. | 1241 |
5 |
Institute of Process Engineering, Chinese Academy of Sciences | 250 |
5 |
Northeastern University | 493 |
4 |
Pangang Group Research Institute Co., Ltd. | 21 |
4 |
First Vanadium Corp. | 5 |
4 |
Hebei Zhongke Tongchuang Vanadium &titanium Technology Co., Ltd. | 4 |
4 |
JFE Material Co., Ltd. | 16 |
3 |
le System Co., Ltd. | 12 |
3 |
Sumitomo Heavy Industries, Ltd. | 1670 |
3 |
TNG Limited | 6 |
3 |
Worcester Polytechnic Institute | 438 |
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.) | 2856 |
3 |
Central America Nickel Inc. | 7 |
3 |
Other owners | 120 |