- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment 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: 151
10-year publication summary
|
11
|
9
|
11
|
12
|
9
|
6
|
4
|
8
|
7
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Materion Newton Inc. | 66 |
11 |
| Metalysis Limited | 49 |
7 |
| Taniobis GmbH | 68 |
7 |
| Centre National de La Recherche Scientifique | 9632 |
6 |
| Mitsui Mining & Smelting Co., Ltd. | 1373 |
5 |
| Ecole Nationale Superieure de Chimie de Montpellier | 167 |
4 |
| H.C. Starck GmbH | 80 |
4 |
| Ningxia Orient Tantalum Industry Co., Ltd. | 47 |
4 |
| Toho Titanium Co., Ltd. | 249 |
4 |
| Universite de Montpellier | 920 |
4 |
| Eramet | 44 |
3 |
| Fukuoka Institute of Technology | 16 |
3 |
| The Governing Council of The University of Toronto, | 1361 |
3 |
| Hazen Research, Inc. | 5 |
3 |
| H.C. Starck Inc. | 54 |
3 |
| Tenova Goodfellow Inc. | 44 |
3 |
| University of Leeds | 279 |
3 |
| TND | 5 |
3 |
| Kyocera Corporation | 12735 |
2 |
| ATI Properties LLC | 202 |
2 |
| Other owners | 67 |