- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment 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
4
|
3
|
2
|
8
|
3
|
2
|
5
|
3
|
2
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hindustan Petroleum Corporation Limited | 191 |
3 |
Northeastern University | 493 |
3 |
University of Bradford | 53 |
3 |
The United States of America as represented by the Secretary of the Navy | 2734 |
2 |
Metalysis Limited | 49 |
2 |
Shenzhen Sunxing Light Alloys Materials Co., Ltd. | 52 |
2 |
Improbed AB | 22 |
2 |
Lawrence Livermore National Security, LLC | 1834 |
1 |
AB Ferrolegeringar | 6 |
1 |
Central South University | 364 |
1 |
Commonwealth Scientific and Industrial Research Organisation | 1652 |
1 |
The Curators of the University of Missouri | 965 |
1 |
Ecole Nationale Superieure de Chimie de Montpellier | 167 |
1 |
H.C. Starck Inc. | 54 |
1 |
Indian Institute of Technology Delhi | 137 |
1 |
Kyushu University, National University Corporation | 1572 |
1 |
National University Corporation Gunma University | 306 |
1 |
Sumitomo Metal Mining Co., Ltd. | 1670 |
1 |
Toho Titanium Co., Ltd. | 249 |
1 |
Tronox LLC | 177 |
1 |
Other owners | 22 |