- All sections
- C - Chemistry; metallurgy
- 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: 77
10-year publication summary
|
5
|
3
|
4
|
5
|
6
|
8
|
5
|
3
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ArcelorMittal | 1887 |
6 |
| Paul Wurth S.A. | 392 |
5 |
| Krosakiharima Corporation | 259 |
4 |
| Nippon Steel Corporation | 5649 |
4 |
| Refractory Intellectual Property GmbH & Co. KG | 502 |
4 |
| International Business Machines Corporation | 60644 |
3 |
| Berry Metal Company | 52 |
3 |
| Sachtleben Chemie GmbH | 73 |
3 |
| Air Products and Chemicals, Inc. | 1448 |
2 |
| Nippon Electrode Company, Ltd. | 14 |
2 |
| Novelis Inc. | 656 |
2 |
| TDK Corporation | 6306 |
1 |
| Lockheed Martin Corporation | 3406 |
1 |
| Siemens VAI Metals Technologies GmbH | 233 |
1 |
| Affival | 28 |
1 |
| ArcelorMittal Investigacion y Desarrollo SL | 209 |
1 |
| ATI Properties LLC | 202 |
1 |
| Harsco Technologies Corporation | 4 |
1 |
| Macrae Technologies, Inc | 13 |
1 |
| Nippon Steel Engineering Co., Ltd. | 218 |
1 |
| Other owners | 30 |