- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 9/00 - General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
Patent holdings for IPC class C22B 9/00
Total number of patents in this class: 163
10-year publication summary
|
17
|
23
|
9
|
11
|
9
|
7
|
3
|
3
|
11
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Molten Metal Equipment Innovations, LLC | 96 |
7 |
| Constellium Issoire | 208 |
5 |
| Constellium Neuf-brisach | 115 |
5 |
| Heraeus Deutschland GmbH & Co. KG | 643 |
5 |
| Heraeus Precious Metals North America LLC | 9 |
5 |
| Constellium Muscle Shoals LLC | 16 |
5 |
| ATI Properties LLC | 202 |
4 |
| Wisconsin Alumni Research Foundation | 3774 |
3 |
| Air Products and Chemicals, Inc. | 1448 |
3 |
| Eth Zurich | 1193 |
3 |
| Pyrotek, Inc. | 193 |
3 |
| Safran Aircraft Engines | 5739 |
3 |
| Honeywell International Inc. | 13799 |
2 |
| Almex USA, Inc. | 21 |
2 |
| Companhia Vale do Rio Doce | 18 |
2 |
| Hertwich Engineering GmbH | 13 |
2 |
| Inductotherm Corp. | 152 |
2 |
| Kobe Steel, Ltd. | 912 |
2 |
| Korea Institute of Industrial Technology | 994 |
2 |
| Norsk Hydro ASA | 288 |
2 |
| Other owners | 96 |