- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 38/60 - Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium or antimony, or more than 0.04% by weight of sulfur
Patent holdings for IPC class C22C 38/60
Total number of patents in this class: 3829
10-year publication summary
|
199
|
263
|
286
|
310
|
241
|
323
|
325
|
384
|
400
|
299
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7549 |
1639 |
| Nippon Steel Corporation | 6895 |
1043 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
190 |
| POSCO Co., Ltd. | 2015 |
150 |
| POSCO | 2142 |
102 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2836 |
96 |
| NIPPON STEEL Stainless Steel Corporation | 277 |
83 |
| Hitachi Metals, Ltd. | 1896 |
36 |
| ArcelorMittal | 2680 |
35 |
| Nippon Steel & Sumikin Stainless Steel Corporation | 156 |
35 |
| Baoshan Iron & Steel Co., Ltd. | 1104 |
28 |
| Daido Steel Co., Ltd. | 284 |
27 |
| Hyundai Steel Company | 535 |
19 |
| Aichi Steel Corporation | 392 |
12 |
| Honda Motor Co., Ltd. | 26034 |
10 |
| NHK Spring Co., Ltd. | 1983 |
10 |
| Sumitomo Metal Industries, Ltd. | 316 |
10 |
| ThyssenKrupp Steel Europe AG | 992 |
10 |
| Proterial, Ltd. | 938 |
9 |
| Nucor Corporation | 417 |
8 |
| Other owners | 277 |