- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 38/26 - Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
Patent holdings for IPC class C22C 38/26
Total number of patents in this class: 1878
10-year publication summary
|
158
|
169
|
197
|
151
|
144
|
164
|
176
|
170
|
143
|
108
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nippon Steel Corporation | 6895 |
261 |
| JFE Steel Corporation | 7549 |
248 |
| POSCO Co., Ltd. | 2015 |
219 |
| ArcelorMittal | 2680 |
168 |
| POSCO | 2142 |
104 |
| Baoshan Iron & Steel Co., Ltd. | 1104 |
102 |
| ThyssenKrupp Steel Europe AG | 992 |
47 |
| Hyundai Steel Company | 535 |
46 |
| Salzgitter Flachstahl GmbH | 163 |
28 |
| NIPPON STEEL Stainless Steel Corporation | 277 |
24 |
| Tata Steel Ijmuiden B.V. | 328 |
18 |
| Nippon Steel & Sumikin Stainless Steel Corporation | 156 |
17 |
| ThyssenKrupp AG | 3399 |
14 |
| Voestalpine Stahl GmbH | 388 |
13 |
| Nisshin Steel Co., Ltd. | 382 |
11 |
| Kanthal AB | 114 |
11 |
| Wuhan Iron and Steel Company Limited | 34 |
11 |
| Seiko Epson Corporation | 20259 |
10 |
| Hitachi Metals, Ltd. | 1896 |
9 |
| Daido Steel Co., Ltd. | 284 |
9 |
| Other owners | 508 |