Harry Drewes
6Patents
4h-index
18Co-inventors
50Inventor score
Filing activity: Jul 20, 1994 → Jan 7, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7335847B2 | Method and apparatus for foreign-body separation from a material flow | Performing Operations; Transporting | 22 | Expired |
| US5558199A | Apparatus for forming a layer of tobacco particles | Human Necessities | 17 | Expired |
| US6332543A | Apparatus for converting a continuously supplied material flow into a single layer | Human Necessities | 5 | Expired |
| US7448391B2 | Method and device for the separation of foreign bodies | Human Necessities | 4 | Expired |
| US8281931B2 | Apparatus and method for post-threshing inspection and sorting of tobacco lamina | Human Necessities | 3 | Active |
| US8893723B2 | Method and device for removing foreign particles from a tobacco stream | Human Necessities | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.