- All sections
- C - Chemistrymetallurgy
- C22C - Alloys
- C22C 33/08 - Making cast-iron alloys
Patent holdings for IPC class C22C 33/08
Total number of patents in this class: 128
10-year publication summary
|
9
|
13
|
10
|
23
|
9
|
9
|
6
|
3
|
9
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Elkem ASA | 206 |
16 |
| Elkem AS | 61 |
10 |
| Weir Minerals Australia, Ltd. | 307 |
10 |
| HD Hyundai Infracore Co., Ltd | 274 |
4 |
| Tupy S.A. | 31 |
3 |
| Hitachi Metals, Ltd. | 1988 |
2 |
| Hyundai Motor Company | 21795 |
2 |
| Aisin Takaoka Co., Ltd. | 98 |
2 |
| Kia Motors Corporation | 7758 |
2 |
| Akebono Brake Industry Co., Ltd. | 359 |
2 |
| Doosan Infracore Co., Ltd. | 309 |
2 |
| Ferropem | 13 |
2 |
| Shandong University of Technology | 118 |
2 |
| Tenova S.p.A. | 156 |
2 |
| Wartsila Finland Oy | 742 |
2 |
| Tenneco Inc | 285 |
2 |
| Wilmington Trust, National Association, AS Co-collateral Trustee, Successor Collateral Trustee | 304 |
2 |
| Seamless (Dalian) Technology Co., Ltd | 2 |
2 |
| Snam Alloys Pvt Ltd | 4 |
2 |
| Meita Industrial Co. Ltd | 2 |
2 |
| Other owners | 55 |