- 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: 3353
10-year publication summary
|
276
|
255
|
257
|
271
|
203
|
233
|
264
|
294
|
294
|
125
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7378 |
817 |
| Nippon Steel Corporation | 6738 |
505 |
| POSCO Co., Ltd. | 1677 |
243 |
| ArcelorMittal | 2554 |
239 |
| Baoshan Iron & Steel Co., Ltd. | 1086 |
196 |
| POSCO | 2153 |
150 |
| Nippon Steel & Sumitomo Metal Corporation | 1985 |
97 |
| ThyssenKrupp Steel Europe AG | 985 |
78 |
| Hyundai Steel Company | 504 |
72 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2835 |
58 |
| TDK Corporation | 6818 |
51 |
| Tata Steel Ijmuiden B.V. | 320 |
34 |
| Voestalpine Stahl GmbH | 384 |
32 |
| ThyssenKrupp AG | 3468 |
27 |
| Kobe Steel, Ltd. | 896 |
26 |
| Salzgitter Flachstahl GmbH | 163 |
21 |
| Nisshin Steel Co., Ltd. | 390 |
19 |
| Nanjing Iron&Steel Co.,Ltd. | 183 |
17 |
| Fujian Golden Dragon Rare-earth Co., Ltd. | 74 |
17 |
| Proterial, Ltd. | 928 |
16 |
| Other owners | 638 |