- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 34/20 - Obtaining niobium, tantalum or vanadium
Patent holdings for IPC class C22B 34/20
Total number of patents in this class: 13
10-year publication summary
|
0
|
1
|
1
|
0
|
0
|
0
|
2
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Materion Newton Inc. | 66 |
2 |
| Centre National de La Recherche Scientifique | 11059 |
1 |
| Kyocera Corporation | 14423 |
1 |
| Chevron U.S.A. Inc. | 4159 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 11127 |
1 |
| Consejo Superior de Investigaciones Cientificas (csic) | 1449 |
1 |
| Erasteel | 29 |
1 |
| Sumitomo Metal Industries, Ltd. | 310 |
1 |
| Universite de Montpellier | 1042 |
1 |
| University of Bradford | 56 |
1 |
| Weee International Recycling, S.L. | 1 |
1 |
| Hannae for T Co., Ltd. | 1 |
1 |
| Other owners | 0 |