- 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: 2046
10-year publication summary
|
175
|
178
|
199
|
192
|
177
|
221
|
202
|
154
|
153
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6564 |
292 |
| JFE Steel Corporation | 7138 |
225 |
| ArcelorMittal | 2437 |
115 |
| POSCO Co., Ltd. | 1618 |
104 |
| POSCO | 2154 |
65 |
| Baoshan Iron & Steel Co., Ltd. | 1029 |
53 |
| NIPPON STEEL Stainless Steel Corporation | 276 |
50 |
| Daido Steel Co., Ltd. | 275 |
31 |
| Nanjing Iron&Steel Co.,Ltd. | 174 |
30 |
| Hyundai Steel Company | 462 |
26 |
| ThyssenKrupp Steel Europe AG | 968 |
24 |
| Hyundai Motor Company | 23093 |
17 |
| ThyssenKrupp AG | 3381 |
16 |
| CRS Holdings, LLC | 150 |
16 |
| Uddeholms Aktiebolag | 197 |
15 |
| Voestalpine Stahl GmbH | 375 |
15 |
| Nippon Steel & Sumikin Stainless Steel Corporation | 164 |
14 |
| Jiangsu Shagang Group Co., Ltd. | 99 |
14 |
| Kobe Steel, Ltd. | 884 |
13 |
| Outokumpu Oyj | 263 |
13 |
| Other owners | 898 |