- All sections
- C - Chemistrymetallurgy
- C22B - Production or refining of metalspretreatment of raw materials
- C22B 61/00 - Obtaining metals not elsewhere provided for in this subclass
Patent holdings for IPC class C22B 61/00
Total number of patents in this class: 115
10-year publication summary
|
14
|
8
|
3
|
3
|
2
|
5
|
8
|
2
|
8
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Freeport Minerals Corporation | 99 |
6 |
| Pan Pacific Copper Co., Ltd. | 31 |
4 |
| Elemental Recycling, Inc. | 9 |
4 |
| Asaka Riken Co., Ltd. | 42 |
3 |
| Sumitomo Metal Mining Co., Ltd. | 1750 |
3 |
| Output Enablers LLC, d/b/a Calchemist | 3 |
3 |
| Dow Global Technologies LLC | 10261 |
2 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10750 |
2 |
| Asarco LLC | 10 |
2 |
| The Curators of the University of Missouri | 1022 |
2 |
| Kanagawa University | 72 |
2 |
| Maritime House Metals Inc. | 2 |
2 |
| The Texas a & M University System | 1652 |
2 |
| AEM Technologies Inc. | 35 |
2 |
| General Electric Company | 17071 |
1 |
| Honda Motor Co., Ltd. | 25109 |
1 |
| Honeywell International Inc. | 13602 |
1 |
| Centre National de La Recherche Scientifique | 10227 |
1 |
| Hitachi Metals, Ltd. | 1990 |
1 |
| Semiconductor Energy Laboratory Co., Ltd. | 11252 |
1 |
| Other owners | 70 |