- 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: 2202
10-year publication summary
|
189
|
191
|
212
|
197
|
182
|
234
|
211
|
161
|
170
|
137
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6969 |
311 |
| JFE Steel Corporation | 7617 |
238 |
| ArcelorMittal | 2725 |
124 |
| POSCO Co., Ltd. | 2028 |
117 |
| Baoshan Iron & Steel Co., Ltd. | 1126 |
65 |
| POSCO | 2143 |
64 |
| NIPPON STEEL Stainless Steel Corporation | 276 |
51 |
| Daido Steel Co., Ltd. | 286 |
33 |
| Nanjing Iron&Steel Co.,Ltd. | 188 |
32 |
| Hyundai Steel Company | 546 |
30 |
| ThyssenKrupp Steel Europe AG | 996 |
27 |
| Hyundai Motor Company | 24898 |
17 |
| Jiangsu Shagang Group Co., Ltd. | 117 |
17 |
| ThyssenKrupp AG | 3332 |
16 |
| Uddeholms Aktiebolag | 205 |
16 |
| Voestalpine Stahl GmbH | 390 |
16 |
| Outokumpu Oyj | 268 |
15 |
| SSAB Technology AB | 166 |
15 |
| CRS Holdings, LLC | 148 |
15 |
| Kobe Steel, Ltd. | 900 |
14 |
| Other owners | 969 |