- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 34/24 - Obtaining niobium or tantalum
Patent holdings for IPC class C22B 34/24
Total number of patents in this class: 152
10-year publication summary
|
9
|
11
|
12
|
9
|
6
|
4
|
8
|
7
|
7
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Materion Newton Inc. | 66 |
11 |
| Metalysis Limited | 47 |
7 |
| Taniobis GmbH | 62 |
6 |
| Mitsui Mining & Smelting Co., Ltd. | 1477 |
5 |
| Centre National de La Recherche Scientifique | 10408 |
4 |
| Fukuoka Institute of Technology | 20 |
4 |
| Ningxia Orient Tantalum Industry Co., Ltd. | 52 |
4 |
| Toho Titanium Co., Ltd. | 252 |
4 |
| Ecole Nationale Superieure de Chimie de Montpellier | 204 |
3 |
| Eramet | 49 |
3 |
| The Governing Council of The University of Toronto, | 1472 |
3 |
| Hazen Research, Inc. | 5 |
3 |
| H.C. Starck GmbH | 69 |
3 |
| Tenova Goodfellow Inc. | 43 |
3 |
| Universite de Montpellier | 982 |
3 |
| University of Leeds | 285 |
3 |
| Kyocera Corporation | 13758 |
2 |
| ATI Properties LLC | 203 |
2 |
| Cvmr Corporation | 18 |
2 |
| Ecole Nationale Superieure de Chimie de Paris | 53 |
2 |
| Other owners | 75 |