Hans E. Grethlein
10Patents
7h-index
17Co-inventors
63Inventor score
Filing activity: Feb 23, 1979 → Feb 25, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5124004A | Distillation process for ethanol | Emerging Cross-Sectional Technologies | 208 | Expired |
| US4626321A | Distillation systems and methods | Emerging Cross-Sectional Technologies | 123 | Expired |
| US4961826A | Distillation process for ethanol | Emerging Cross-Sectional Technologies | 122 | Expired |
| US4237226A | Process for pretreating cellulosic substrates and for producing sugar therefrom | Chemistry; Metallurgy | 116 | Expired |
| US4556430A | Process for hydrolysis of biomass | Chemistry; Metallurgy | 68 | Expired |
| US6143534A | Microbial process for producing methane from coal | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4997665A | Dietary fibers and a process for their production | Emerging Cross-Sectional Technologies | 21 | Expired |
| US8211679B2 | Process for producing ethanol | Emerging Cross-Sectional Technologies | 6 | Active |
| US4818295A | Cyclone reactor | Performing Operations; Transporting | 5 | Expired |
| US5167799A | Apparatus for simulating a full scale belt filter press | Performing Operations; Transporting | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.