- All sections
- C - Chemistry; metallurgy
- 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: 2933
10-year publication summary
|
273
|
276
|
255
|
257
|
271
|
203
|
229
|
252
|
285
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 6527 |
745 |
| Nippon Steel Corporation | 5982 |
471 |
| ArcelorMittal | 2047 |
180 |
| POSCO Co., Ltd. | 1290 |
172 |
| Baoshan Iron & Steel Co., Ltd. | 888 |
159 |
| POSCO | 2204 |
150 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
97 |
| ThyssenKrupp Steel Europe AG | 953 |
72 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2906 |
62 |
| TDK Corporation | 6517 |
47 |
| Tata Steel Ijmuiden B.V. | 300 |
32 |
| ThyssenKrupp AG | 3207 |
30 |
| Hyundai Steel Company | 348 |
28 |
| Voestalpine Stahl GmbH | 340 |
27 |
| Kobe Steel, Ltd. | 862 |
23 |
| Nisshin Steel Co., Ltd. | 398 |
19 |
| Salzgitter Flachstahl GmbH | 156 |
19 |
| Nanjing Iron&Steel Co.,Ltd. | 153 |
16 |
| Hitachi Metals, Ltd. | 2026 |
15 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
15 |
| Other owners | 554 |