- All sections
- C - Chemistrymetallurgy
- C21B - Manufacture of iron or steel
- C21B 3/00 - General features in the manufacture of pig-iron
Patent holdings for IPC class C21B 3/00
Total number of patents in this class: 45
10-year publication summary
|
1
|
2
|
0
|
0
|
0
|
3
|
2
|
1
|
5
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Technological Resources Pty. Limited | 438 |
3 |
| TDK Corporation | 6807 |
2 |
| Luossavaara-Kiirunavaara AB | 127 |
2 |
| Newsouth Innovations Pty Limited | 615 |
2 |
| Paul Wurth S.A. | 430 |
2 |
| Samsung SDI Co., Ltd. | 9851 |
1 |
| Air Products and Chemicals, Inc. | 1464 |
1 |
| Amerifab, Inc. | 50 |
1 |
| Bactech Environmental Corporation | 2 |
1 |
| Berry Metal Company | 50 |
1 |
| Ebner Industrieofenbau GmbH | 143 |
1 |
| Ecoloop GmbH | 22 |
1 |
| Foseco International Limited | 212 |
1 |
| Gestion Mcmarland Inc. | 3 |
1 |
| Hatch Ltd. | 222 |
1 |
| Kobe Steel, Ltd. | 895 |
1 |
| Korea Zinc Co., Ltd. | 156 |
1 |
| Molten Metal Equipment Innovations, Inc. | 9 |
1 |
| Molten Metal Equipment Innovations, LLC | 100 |
1 |
| North American Refractories Company | 8 |
1 |
| Other owners | 19 |