- All sections
- C - Chemistrymetallurgy
- C21B - Manufacture of iron or steel
- C21B 7/06 - Linings for furnaces
Patent holdings for IPC class C21B 7/06
Total number of patents in this class: 84
10-year publication summary
|
4
|
5
|
6
|
8
|
5
|
4
|
4
|
5
|
7
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 2541 |
7 |
| Refractory Intellectual Property GmbH & Co. KG | 562 |
7 |
| Paul Wurth S.A. | 430 |
5 |
| Krosakiharima Corporation | 294 |
4 |
| Nippon Steel Corporation | 6701 |
4 |
| Berry Metal Company | 50 |
3 |
| Sachtleben Chemie GmbH | 50 |
3 |
| Harbisonwalker International Holdings, Inc. | 54 |
3 |
| Air Products and Chemicals, Inc. | 1461 |
2 |
| Nippon Electrode Company, Ltd. | 23 |
2 |
| Novelis Inc. | 768 |
2 |
| Vesuvius Group S.A. | 110 |
2 |
| International Business Machines Corporation | 62279 |
1 |
| TDK Corporation | 6814 |
1 |
| Lockheed Martin Corporation | 3279 |
1 |
| Siemens VAI Metals Technologies GmbH | 206 |
1 |
| Affival | 28 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 208 |
1 |
| ATI Properties LLC | 200 |
1 |
| Harsco Technologies Corporation | 3 |
1 |
| Other owners | 32 |