- 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 1/00 - Refining of pig-iron; Cast iron
Patent holdings for IPC class C21C 1/00
Total number of patents in this class: 49
10-year publication summary
2
|
2
|
3
|
3
|
1
|
0
|
3
|
2
|
3
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Seiko Epson Corporation | 18724 |
6 |
The Governing Council of The University of Toronto, | 1361 |
3 |
Tenova Goodfellow Inc. | 44 |
3 |
Hoffman & Sons Technologies, LLC | 3 |
2 |
JFE Steel Corporation | 6067 |
2 |
Magnesita Refratarios S/A | 9 |
2 |
SMS Siemag Aktiengesellschaft | 529 |
2 |
The Regents of the University of California | 18943 |
1 |
Air Liquide Advanced Technologies U.S. LLC | 90 |
1 |
Alamamet GmbH | 1 |
1 |
The Electric Materials Company | 5 |
1 |
Elkem AS | 66 |
1 |
Elkem ASA | 205 |
1 |
Fundacion Tecnalia Research & Innovation | 205 |
1 |
Gas Technology Institute | 374 |
1 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
1 |
Maanshan Iron & Steel Co. Ltd. | 26 |
1 |
Magang (Group) Holding Co. Ltd. | 6 |
1 |
Newsouth Innovations Pty Limited | 567 |
1 |
Pyrotek, Inc. | 193 |
1 |
Other owners | 16 |