- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 9/20 - Arc remelting
Patent holdings for IPC class C22B 9/20
Total number of patents in this class: 126
10-year publication summary
|
13
|
11
|
6
|
11
|
12
|
5
|
11
|
6
|
4
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Materion Newton Inc. | 65 |
9 |
| Hitachi Metals, Ltd. | 2020 |
8 |
| Aperam | 114 |
7 |
| ATI Properties LLC | 205 |
7 |
| Safran Aircraft Engines | 6059 |
6 |
| Titanium Metals Corporation | 79 |
5 |
| Public Stock Company "vsmpo-avisma Corporation" | 28 |
4 |
| VDM Metals International GmbH | 94 |
4 |
| Safran Landing Systems | 675 |
4 |
| Mitsubishi Heavy Industries, Ltd. | 8545 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2907 |
3 |
| Amerifab, Inc. | 49 |
2 |
| Institute of Metal Research Chinese Academy of Sciences | 109 |
2 |
| Nucor Corporation | 421 |
2 |
| Sumitomo Metal Mining Co., Ltd. | 1731 |
2 |
| KW Associates LLC | 13 |
2 |
| FORONI S.p.A. | 21 |
2 |
| Stock Company "chepetsky Mechanical Plant" (sc Cmp) | 9 |
2 |
| MM Metals USA, LLC | 12 |
2 |
| Aurum Integra Inc. | 3 |
2 |
| Other owners | 48 |