- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 9/00 - General processes of refining or remelting of metalsApparatus for electroslag or arc remelting of metals
Patent holdings for IPC class C22B 9/00
Total number of patents in this class: 179
10-year publication summary
|
9
|
11
|
9
|
7
|
4
|
4
|
11
|
13
|
7
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Constellium Issoire | 226 |
8 |
| Constellium Neuf-brisach | 140 |
8 |
| Constellium Muscle Shoals LLC | 30 |
8 |
| Molten Metal Equipment Innovations, LLC | 100 |
7 |
| Heraeus Deutschland GmbH & Co. KG | 403 |
5 |
| Heraeus Precious Metals North America LLC | 9 |
5 |
| ALD Vacuum Technologies GmbH | 141 |
4 |
| ATI Properties LLC | 200 |
4 |
| Wisconsin Alumni Research Foundation | 3887 |
3 |
| Air Products and Chemicals, Inc. | 1469 |
3 |
| Eth Zurich | 1319 |
3 |
| Pyrotek, Inc. | 207 |
3 |
| Safran Aircraft Engines | 6671 |
3 |
| Almex USA, Inc. | 21 |
2 |
| Fives North American Combustion, Inc. | 47 |
2 |
| Inductotherm Corp. | 154 |
2 |
| Kobe Steel, Ltd. | 899 |
2 |
| Korea Institute of Industrial Technology | 1029 |
2 |
| Mitsui Mining & Smelting Co., Ltd. | 1100 |
2 |
| Norsk Hydro ASA | 247 |
2 |
| Other owners | 101 |