Hans C. Hein
10Patents
6h-index
15Co-inventors
63Inventor score
Filing activity: Jul 26, 1984 → Oct 16, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5879556A | Method of recovering extractant | Performing Operations; Transporting | 29 | Expired |
| US6432167B1 | Processes for the recovery of copper from aqueous solutions containing nitrate ions | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6596053B2 | Processes for the recovery of copper from aqueous solutions containing nitrate ions | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6702872B1 | Processes for the recovery of copper from aqueous solutions containing nitrate ions | Emerging Cross-Sectional Technologies | 24 | Expired |
| US7166144B2 | Interlaced series parallel configuration for metal solvent extraction plants | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4561887A | Process for recovering metals from solution through solvent extraction and pyrometallurgical reduction | Emerging Cross-Sectional Technologies | 13 | Expired |
| US7025899B2 | Concentrated solutions of oxime metal extractants and method of formulating extractant compositions therefrom | Emerging Cross-Sectional Technologies | 2 | Expired |
| US10358692B2 | Process for metal extraction with sorption leaching in wet solids | Emerging Cross-Sectional Technologies | 0 | Active |
| US7635457B2 | Method for heap and dump leaching coupled with solvent extraction for metal recovery | Emerging Cross-Sectional Technologies | 0 | Active |
| US8298510B2 | Process for improving phase separations in solvent extraction circuits | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.