- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 34/00 - Obtaining refractory metals
Patent holdings for IPC class C22B 34/00
Total number of patents in this class: 52
10-year publication summary
|
3
|
2
|
8
|
3
|
2
|
5
|
3
|
2
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hindustan Petroleum Corporation Limited | 210 |
3 |
| Northeastern University | 538 |
3 |
| University of Bradford | 55 |
3 |
| The United States of America as represented by the Secretary of the Navy | 2744 |
2 |
| Metalysis Limited | 47 |
2 |
| Shenzhen Sunxing Light Alloys Materials Co., Ltd. | 51 |
2 |
| Improbed AB | 22 |
2 |
| T&e Inc. | 6 |
2 |
| Lawrence Livermore National Security, LLC | 1934 |
1 |
| AB Ferrolegeringar | 6 |
1 |
| Central South University | 436 |
1 |
| Commonwealth Scientific and Industrial Research Organisation | 1654 |
1 |
| The Curators of the University of Missouri | 1043 |
1 |
| Ecole Nationale Superieure de Chimie de Montpellier | 204 |
1 |
| Indian Institute of Technology Delhi | 145 |
1 |
| Kyushu University, National University Corporation | 1654 |
1 |
| National University Corporation Gunma University | 294 |
1 |
| Sumitomo Metal Mining Co., Ltd. | 1779 |
1 |
| Toho Titanium Co., Ltd. | 252 |
1 |
| Tronox LLC | 161 |
1 |
| Other owners | 21 |