Daniel A. Norrgran
4Patents
3h-index
5Co-inventors
43Inventor score
Filing activity: Nov 21, 1983 → Dec 1, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6149014A | Mill magnet separator and method for separating | Performing Operations; Transporting | 25 | Expired |
| US4549959A | Process for separating molybdenite from a molybdenite-containing copper sulfide concentrate | Performing Operations; Transporting | 13 | Expired |
| US4597857A | Process for producing an upgraded sulfide mineral concentrate from an ore containing sulfide mineral and silicate clay | Performing Operations; Transporting | 3 | Expired |
| US4541993A | Process for the sulfatization of non-ferrous metal sulfides | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.