- All sections
- C - Chemistry; metallurgy
- C22B - Production or refining of metals; pretreatment of raw materials
- C22B 4/04 - Heavy metals
Patent holdings for IPC class C22B 4/04
Total number of patents in this class: 26
10-year publication summary
7
|
1
|
1
|
2
|
1
|
1
|
2
|
1
|
6
|
1
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
ATI Properties LLC | 202 |
2 |
Technological Resources Pty. Limited | 444 |
2 |
William Marsh Rice University | 937 |
2 |
The Trustees of Columbia University in the City of New York | 3440 |
1 |
Battelle Memorial Institute | 2356 |
1 |
Baltic Titan Limited | 1 |
1 |
Gem Co., Ltd. | 26 |
1 |
Iowa State University Research Foundation, Inc. | 685 |
1 |
Northeastern University | 493 |
1 |
Oss Management Services (Pty) Limited | 3 |
1 |
Pukyong National University Industry-University Cooperation Foundation | 254 |
1 |
The South African Nuclear Energy Corporation Limited | 32 |
1 |
ThyssenKrupp Steel Europe AG | 924 |
1 |
University of Science and Technology Beijing | 245 |
1 |
Vale Inco Limited | 12 |
1 |
Xiangguang Copper Co., Ltd. | 5 |
1 |
China ENFI Engineering Corp. | 91 |
1 |
FLSmidth A/S | 923 |
1 |
Platinum Group Chile SpA | 3 |
1 |
Pure Lithium Corporation | 26 |
1 |
Other owners | 3 |