- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 37/00 - Cast-iron alloys
Patent holdings for IPC class C22C 37/00
Total number of patents in this class: 143
10-year publication summary
|
8
|
12
|
6
|
10
|
7
|
8
|
5
|
4
|
5
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Metals, Ltd. | 1898 |
21 |
| JFE Steel Corporation | 7527 |
9 |
| Tupy S.A. | 34 |
7 |
| Caterpillar Inc. | 10267 |
5 |
| Toshiba Kikai Kabushiki Kaisha | 258 |
4 |
| Kabushiki Kaisha Riken | 305 |
3 |
| TPR Co., Ltd. | 171 |
3 |
| TPR Industry Co., Ltd. | 53 |
3 |
| Nippon Steel Rolls Corporation | 5 |
3 |
| LG Electronics Inc. | 75694 |
2 |
| Hyundai Motor Company | 24653 |
2 |
| Asada Katan Chutetu-syo Co., Ltd. | 2 |
2 |
| Doosan Infracore Co., Ltd. | 308 |
2 |
| Henan Province Zynp Corporation | 2 |
2 |
| Kubota Corporation | 4391 |
2 |
| Newsouth Innovations Pty Limited | 619 |
2 |
| Scania CV AB | 2409 |
2 |
| Tenova S.p.A. | 158 |
2 |
| Zanardi Fonderie S.p.A. | 6 |
2 |
| Verdicio Solutions A.I.E. | 20 |
2 |
| Other owners | 63 |