- All sections
- C - Chemistrymetallurgy
- C22F - Changing the physical structure of non-ferrous metals or non-ferrous alloys
- C22F 1/11 - Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of chromium or alloys based thereon
Patent holdings for IPC class C22F 1/11
Total number of patents in this class: 33
10-year publication summary
|
9
|
3
|
4
|
3
|
0
|
1
|
3
|
2
|
1
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi, Ltd. | 16031 |
8 |
| Sumitomo Electric Industries, Ltd. | 16273 |
2 |
| Bloom Energy Corporation | 696 |
2 |
| Chemetics Inc. | 67 |
2 |
| Sumitomo Electric Toyama Co., Ltd. | 113 |
2 |
| Companhia Brasileira de Metalurgia e Mineracao | 17 |
2 |
| Hitachi Metals, Ltd. | 1902 |
1 |
| Wisconsin Alumni Research Foundation | 3884 |
1 |
| IHI Corporation | 3530 |
1 |
| Japan AE Power Systems Corporation | 17 |
1 |
| JFE Precision Corporation | 12 |
1 |
| Korea Atomic Energy Research Institute | 465 |
1 |
| Kubota Corporation | 4377 |
1 |
| Materials Solutions Limited | 1 |
1 |
| Mirus LLC | 247 |
1 |
| Northwestern Polytechnical University | 150 |
1 |
| Savroc Ltd | 26 |
1 |
| Tosoh Corporation | 1408 |
1 |
| WAINWRIGHT, David | 12 |
1 |
| Proterial, Ltd. | 931 |
1 |
| Other owners | 1 |