Roger D. Hanson
3Patents
3h-index
2Co-inventors
40Inventor score
Filing activity: Jun 10, 1987 → Jun 25, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6158546A | Straight through muffler with conically-ended output passage | Mechanical Engineering; Lighting; Heating | 126 | Expired |
| US4744440A | Exhaust gas silencing device | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4865154A | Muffler with drain holes | Emerging Cross-Sectional Technologies | 17 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.