- All sections
- C - Chemistry; metallurgy
- C21B - Manufacture of iron or steel
- C21B 11/10 - Making pig-iron other than in blast furnaces in electric furnaces
Patent holdings for IPC class C21B 11/10
Total number of patents in this class: 113
10-year publication summary
6
|
6
|
5
|
11
|
5
|
9
|
8
|
6
|
12
|
23
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
ArcelorMittal | 1887 |
15 |
JFE Steel Corporation | 6067 |
7 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
6 |
Tenova S.p.A. | 150 |
6 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
4 |
Danieli & C. Officine Meccaniche S.p.A. | 680 |
3 |
Newsouth Innovations Pty Limited | 567 |
3 |
Nippon Steel Corporation | 5649 |
3 |
Northeastern University | 493 |
3 |
Technological Resources Pty. Limited | 444 |
3 |
Kobe Steel, Ltd. | 912 |
2 |
Metso Minerals Oy | 152 |
2 |
Paul Wurth S.A. | 392 |
2 |
Southwire Company, LLC | 711 |
2 |
ThyssenKrupp Steel Europe AG | 924 |
2 |
China ENFI Engineering Corp. | 91 |
2 |
African Rainbow Minerals Limited | 10 |
2 |
Tenova Industrial Technologies (Beijing) Co., Ltd | 2 |
2 |
Metso Outotec Finland Oy | 795 |
2 |
Pathfinder Holdings Corp | 5 |
2 |
Other owners | 40 |