- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 9/04 - Refining by applying a vacuum
Patent holdings for IPC class C22B 9/04
Total number of patents in this class: 145
10-year publication summary
|
14
|
18
|
9
|
12
|
14
|
10
|
12
|
13
|
11
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| JX Nippon Mining & Metals Corporation | 1576 |
9 |
| Companhia Brasileira de Metalurgia e Mineracao | 16 |
8 |
| Metallo Belgium | 53 |
6 |
| The Boeing Company | 19843 |
5 |
| Eth Zurich | 1193 |
5 |
| Coogee Titanium Pty Ltd | 12 |
5 |
| Hitachi Metals, Ltd. | 2175 |
4 |
| ALD Vacuum Technologies GmbH | 138 |
4 |
| ATI Properties LLC | 202 |
3 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
3 |
| Kunming Diboo Technology Co., Ltd. | 7 |
3 |
| Safran Aircraft Engines | 5739 |
3 |
| Titanium Metals Corporation | 80 |
3 |
| Safran Landing Systems | 621 |
3 |
| Ikoi S.p.A. | 20 |
3 |
| Shine Technologies, LLC | 92 |
3 |
| ASML Netherlands B.V. | 6816 |
2 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8635 |
2 |
| ATI Properties, Inc. | 109 |
2 |
| BIOTRONIK AG | 387 |
2 |
| Other owners | 67 |