- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment 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: 101
10-year publication summary
|
7
|
14
|
8
|
3
|
3
|
2
|
5
|
8
|
2
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Freeport Minerals Corporation | 80 |
5 |
| Pan Pacific Copper Co., Ltd. | 31 |
4 |
| Asaka Riken Co., Ltd. | 35 |
3 |
| Sumitomo Metal Mining Co., Ltd. | 1670 |
3 |
| Elemental Recycling, Inc. | 7 |
3 |
| Output Enablers LLC, d/b/a Calchemist | 3 |
3 |
| Dow Global Technologies LLC | 10147 |
2 |
| Asarco LLC | 10 |
2 |
| The Curators of the University of Missouri | 965 |
2 |
| Kanagawa University | 71 |
2 |
| Maritime House Metals Inc. | 2 |
2 |
| The Texas a & M University System | 1519 |
2 |
| AEM Technologies Inc. | 33 |
2 |
| General Electric Company | 18133 |
1 |
| Honda Motor Co., Ltd. | 24537 |
1 |
| Honeywell International Inc. | 13799 |
1 |
| Centre National de La Recherche Scientifique | 9632 |
1 |
| Hitachi Metals, Ltd. | 2175 |
1 |
| Semiconductor Energy Laboratory Co., Ltd. | 10902 |
1 |
| Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
1 |
| Other owners | 59 |