- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 9/05 - Refining by treating with gases, e.g. gas flushing
Patent holdings for IPC class C22B 9/05
Total number of patents in this class: 208
10-year publication summary
|
11
|
5
|
10
|
18
|
9
|
3
|
6
|
15
|
18
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pyrotek, Inc. | 201 |
11 |
| Southwire Company, LLC | 792 |
10 |
| SMS Group GmbH | 1134 |
8 |
| Constellium Issoire | 219 |
7 |
| Techemet, LP, composed of Techemet Holdings, Inc., General Partner | 16 |
6 |
| Constellium Neuf-brisach | 138 |
4 |
| Foseco International Limited | 212 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2881 |
4 |
| Mitsui Mining & Smelting Co., Ltd. | 1512 |
4 |
| Molten Metal Equipment Innovations, LLC | 99 |
4 |
| Praxair Technology, Inc. | 1285 |
4 |
| Refractory Intellectual Property GmbH & Co. KG | 543 |
4 |
| Constellium Muscle Shoals LLC | 29 |
4 |
| Heraeus Deutschland GmbH & Co. KG | 417 |
3 |
| JX Nippon Mining & Metals Corporation | 1483 |
3 |
| Norsk Hydro ASA | 262 |
3 |
| Heraeus Precious Metals North America LLC | 9 |
3 |
| Metso Metals Oy | 208 |
3 |
| Shin-Etsu Chemical Co., Ltd. | 5715 |
2 |
| Alu Innovation AS | 6 |
2 |
| Other owners | 115 |