- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 9/18 - Electroslag remelting
Patent holdings for IPC class C22B 9/18
Total number of patents in this class: 93
10-year publication summary
|
10
|
7
|
5
|
6
|
5
|
9
|
6
|
12
|
6
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ALD Vacuum Technologies GmbH | 141 |
10 |
| Aperam | 113 |
6 |
| ATI Properties LLC | 205 |
5 |
| Denka Company Limited | 2471 |
5 |
| INTECO Special Melting Technologies GmbH | 11 |
4 |
| Gaona Aero Material Co., Ltd. | 18 |
4 |
| SNECMA S.A. | 1149 |
3 |
| Baoshan Iron & Steel Co., Ltd. | 902 |
3 |
| Safran Aircraft Engines | 6078 |
3 |
| VDM Metals International GmbH | 94 |
3 |
| Snecma | 1065 |
3 |
| Fushun Special Steel Shares Co., Ltd. | 3 |
3 |
| Longnan Longyi Heavy Rare-earth Technology Co., Ltd. | 8 |
3 |
| Hitachi Metals, Ltd. | 2017 |
2 |
| Aubert & Duval | 108 |
2 |
| Nippon Steel Corporation | 6031 |
2 |
| Soochow University | 1721 |
2 |
| Foshan Polytechnic | 5 |
2 |
| Daye Special Steel Co., Ltd. | 17 |
2 |
| Erzhong (deyang) Heavy Equipment Co., Ltd. | 14 |
2 |
| Other owners | 24 |