- All sections
- C - Chemistrymetallurgy
- C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steeltreatment in molten state of ferrous alloys
- C21C 1/08 - Manufacture of cast-iron
Patent holdings for IPC class C21C 1/08
Total number of patents in this class: 48
10-year publication summary
|
3
|
7
|
3
|
4
|
0
|
3
|
3
|
2
|
1
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tenova S.p.A. | 156 |
4 |
| HD Hyundai Infracore Co., Ltd | 274 |
3 |
| Eco'ring | 15 |
2 |
| Elkem AS | 61 |
2 |
| Elkem ASA | 206 |
2 |
| Honeywell International Inc. | 13573 |
1 |
| Deere & Company | 7552 |
1 |
| Hitachi Metals, Ltd. | 1988 |
1 |
| Daimler AG | 3402 |
1 |
| Siemens Energy, Inc. | 1691 |
1 |
| ArcelorMittal | 2254 |
1 |
| Asada Katan Chutetu-syo Co., Ltd. | 2 |
1 |
| Brembo S.p.A. | 449 |
1 |
| China University of Mining and Technology | 1245 |
1 |
| Danieli & C. Officine Meccaniche S.p.A. | 713 |
1 |
| Eurecat S.A. | 88 |
1 |
| Fiday Gestion | 7 |
1 |
| Fundacion Inasmet | 9 |
1 |
| Fundacion Tecnalia Research & Innovation | 216 |
1 |
| Incorporated National University Iwate University | 36 |
1 |
| Other owners | 20 |