- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 9/16 - Remelting metals
Patent holdings for IPC class C22B 9/16
Total number of patents in this class: 133
10-year publication summary
|
12
|
10
|
7
|
9
|
11
|
11
|
6
|
13
|
10
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pyrotek, Inc. | 193 |
8 |
| Techemet, LP, composed of Techemet Holdings, Inc., General Partner | 17 |
6 |
| Air Products and Chemicals, Inc. | 1448 |
5 |
| Hitachi Metals, Ltd. | 2175 |
4 |
| Constellium Issoire | 208 |
4 |
| Constellium Neuf-brisach | 115 |
3 |
| Norsk Hydro ASA | 288 |
3 |
| VDM Metals International GmbH | 97 |
3 |
| Constellium Muscle Shoals LLC | 16 |
3 |
| ALD Vacuum Technologies GmbH | 138 |
2 |
| ATI Properties, Inc. | 109 |
2 |
| Berry Metal Company | 52 |
2 |
| Hatch Ltd. | 219 |
2 |
| Iron Oak LLC | 7 |
2 |
| JX Nippon Mining & Metals Corporation | 1576 |
2 |
| Linde Aktiengesellschaft | 1600 |
2 |
| Mitsubishi Materials Corporation | 2378 |
2 |
| Nippon Crucible Co., Ltd. | 38 |
2 |
| Tounetsu Co., Ltd. | 25 |
2 |
| Equispheres Inc. | 13 |
2 |
| Other owners | 72 |