- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 38/14 - Ferrous alloys, e.g. steel alloys containing titanium or zirconium
Patent holdings for IPC class C22C 38/14
Total number of patents in this class: 3441
10-year publication summary
|
276
|
255
|
257
|
271
|
203
|
233
|
263
|
294
|
300
|
210
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7508 |
825 |
| Nippon Steel Corporation | 6843 |
518 |
| POSCO Co., Ltd. | 2006 |
267 |
| ArcelorMittal | 2663 |
257 |
| Baoshan Iron & Steel Co., Ltd. | 1101 |
199 |
| POSCO | 2147 |
150 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
97 |
| ThyssenKrupp Steel Europe AG | 989 |
79 |
| Hyundai Steel Company | 529 |
77 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2831 |
58 |
| TDK Corporation | 6855 |
52 |
| Tata Steel Ijmuiden B.V. | 325 |
35 |
| Voestalpine Stahl GmbH | 389 |
32 |
| Kobe Steel, Ltd. | 899 |
26 |
| ThyssenKrupp AG | 3423 |
26 |
| Salzgitter Flachstahl GmbH | 163 |
21 |
| Nisshin Steel Co., Ltd. | 382 |
19 |
| Nanjing Iron&Steel Co.,Ltd. | 186 |
18 |
| Fujian Golden Dragon Rare-earth Co., Ltd. | 74 |
17 |
| Proterial, Ltd. | 933 |
16 |
| Other owners | 652 |