- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 9/18 - Electroslag remelting
Patent holdings for IPC class C22B 9/18
Total number of patents in this class: 88
10-year publication summary
|
3
|
10
|
7
|
5
|
6
|
5
|
9
|
6
|
12
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ALD Vacuum Technologies GmbH | 138 |
9 |
| Aperam | 104 |
6 |
| ATI Properties LLC | 202 |
5 |
| Denka Company Limited | 2189 |
5 |
| INTECO Special Melting Technologies GmbH | 13 |
4 |
| Gaona Aero Material Co., Ltd. | 13 |
4 |
| SNECMA S.A. | 1160 |
3 |
| VDM Metals International GmbH | 97 |
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. | 2175 |
2 |
| Aubert & Duval | 106 |
2 |
| Baoshan Iron & Steel Co., Ltd. | 832 |
2 |
| Mitsubishi Materials Corporation | 2378 |
2 |
| Nippon Steel Corporation | 5649 |
2 |
| Safran Aircraft Engines | 5739 |
2 |
| Foshan Polytechnic | 5 |
2 |
| Daye Special Steel Co., Ltd. | 13 |
2 |
| Caigujindai (Foshan) Metal Composite Materials Co., Ltd. | 3 |
2 |
| Other owners | 22 |