- All sections
- C - Chemistry; metallurgy
- C21C - Processing of pig-iron, e.g. refining, manufacture of wrought-iron or steel; treatment in molten state of ferrous alloys
- C21C 1/10 - Making spheroidal graphite cast-iron
Patent holdings for IPC class C21C 1/10
Total number of patents in this class: 114
10-year publication summary
|
4
|
6
|
9
|
15
|
18
|
9
|
4
|
8
|
4
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Elkem ASA | 205 |
19 |
| Elkem AS | 66 |
8 |
| Ferropem | 24 |
6 |
| Foseco International Limited | 204 |
5 |
| Tohoku University | 2526 |
5 |
| I2c Co., Ltd. | 6 |
5 |
| Akebono Brake Industry Co., Ltd. | 354 |
4 |
| Kabushiki Kaisha Riken | 265 |
3 |
| Guangdong Beisheng Yitong Industrial Co., Ltd. | 6 |
3 |
| Hitachi Metals, Ltd. | 2175 |
2 |
| Shandong University of Technology | 113 |
2 |
| SKW Giesserei GmbH | 3 |
2 |
| Teksid do Brasil Ltda. | 4 |
2 |
| Toshiba Kikai Kabushiki Kaisha | 300 |
2 |
| GE Infrastructure Technology, LLC | 5873 |
2 |
| Kabushiki Kaisha Toyota Jidoshokki | 1699 |
2 |
| Sediver | 7 |
2 |
| Tianrun Industry Technology Co., Ltd. | 5 |
2 |
| LG Electronics Inc. | 69257 |
1 |
| Hyundai Motor Company | 19021 |
1 |
| Other owners | 36 |