- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 38/46 - Ferrous alloys, e.g. steel alloys containing chromium with nickel with vanadium
Patent holdings for IPC class C22C 38/46
Total number of patents in this class: 1992
10-year publication summary
|
168
|
175
|
178
|
199
|
192
|
177
|
221
|
200
|
154
|
116
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6365 |
285 |
| JFE Steel Corporation | 6965 |
218 |
| ArcelorMittal | 2328 |
109 |
| POSCO Co., Ltd. | 1574 |
99 |
| POSCO | 2181 |
64 |
| NIPPON STEEL Stainless Steel Corporation | 282 |
50 |
| Baoshan Iron & Steel Co., Ltd. | 968 |
48 |
| Daido Steel Co., Ltd. | 272 |
30 |
| Nanjing Iron&Steel Co.,Ltd. | 166 |
30 |
| Hyundai Steel Company | 441 |
24 |
| ThyssenKrupp Steel Europe AG | 958 |
24 |
| Hyundai Motor Company | 22369 |
17 |
| ThyssenKrupp AG | 3311 |
16 |
| CRS Holdings, LLC | 155 |
16 |
| Uddeholms Aktiebolag | 195 |
15 |
| Nippon Steel & Sumikin Stainless Steel Corporation | 166 |
14 |
| Jiangsu Shagang Group Co., Ltd. | 95 |
14 |
| Kobe Steel, Ltd. | 882 |
13 |
| Outokumpu Oyj | 261 |
13 |
| Voestalpine Stahl GmbH | 363 |
13 |
| Other owners | 880 |