- All sections
- B - Performing operationstransporting
- B22D - Casting of metalscasting of other substances by the same processes or devices
- B22D 11/11 - Treating the molten metal
Patent holdings for IPC class B22D 11/11
Total number of patents in this class: 116
10-year publication summary
|
15
|
5
|
7
|
10
|
5
|
4
|
6
|
9
|
5
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JFE Steel Corporation | 7483 |
18 |
| Nippon Steel Corporation | 6839 |
11 |
| POSCO | 2147 |
7 |
| Nucor Corporation | 418 |
6 |
| Mitsubishi Materials Corporation | 2468 |
5 |
| Nippon Steel & Sumitomo Metal Corporation | 1981 |
4 |
| Nisshin Steel Co., Ltd. | 382 |
4 |
| Sumitomo Metal Industries, Ltd. | 319 |
4 |
| Baoshan Iron & Steel Co., Ltd. | 1098 |
3 |
| Foseco International Limited | 216 |
3 |
| Kobe Steel, Ltd. | 899 |
3 |
| Novelis Inc. | 777 |
3 |
| NIPPON STEEL Stainless Steel Corporation | 277 |
3 |
| ABB Schweiz AG | 7578 |
2 |
| Danieli & C. Officine Meccaniche S.p.A. | 718 |
2 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2830 |
2 |
| Krosakiharima Corporation | 296 |
2 |
| Northeastern University | 572 |
2 |
| Refratechnik Holding GmbH | 144 |
2 |
| Sumco Corporation | 1109 |
2 |
| Other owners | 28 |