- 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: 49
10-year publication summary
|
7
|
3
|
4
|
0
|
3
|
3
|
2
|
1
|
2
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tenova S.p.A. | 161 |
4 |
| Deere & Company | 8183 |
2 |
| Eco'ring | 15 |
2 |
| Elkem AS | 55 |
2 |
| Elkem ASA | 209 |
2 |
| HD Construction Equipment Co., Ltd., HD Hyundai Infracore Co., Ltd. | 235 |
2 |
| Honeywell International Inc. | 12766 |
1 |
| Hitachi Metals, Ltd. | 1822 |
1 |
| Siemens Energy, Inc. | 1680 |
1 |
| ArcelorMittal | 2736 |
1 |
| Asada Katan Chutetu-syo Co., Ltd. | 2 |
1 |
| Brembo S.p.A. | 510 |
1 |
| China University of Mining and Technology | 1316 |
1 |
| Danieli & C. Officine Meccaniche S.p.A. | 721 |
1 |
| Eurecat S.A. | 96 |
1 |
| Fiday Gestion | 6 |
1 |
| Fundacion Inasmet | 4 |
1 |
| Fundacion Tecnalia Research & Innovation | 225 |
1 |
| Incorporated National University Iwate University | 32 |
1 |
| Kimura Chuzosho Co., Ltd. | 6 |
1 |
| Other owners | 21 |