Gerd Ohrnberger
9Patents
6h-index
15Co-inventors
60Inventor score
Filing activity: Nov 24, 1982 → Jan 20, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4446828A | Reciprocating internal combustion engine | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US6415759B2 | Four stroke engine having flexible arrangement | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5901677A | Inlet pipe system for a multicylinder internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US5492088A | Intake pipe system for a multicylinder internal combustion engine | Emerging Cross-Sectional Technologies | 14 | Expired |
| US7159680B2 | Engine arrangement for a snowmobile | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6929081B2 | Engine arrangement for a four cycle engine | Emerging Cross-Sectional Technologies | 10 | Expired |
| US7600492B2 | Motor engine family | Emerging Cross-Sectional Technologies | 3 | Active |
| US7000577B2 | Modular engine family | Emerging Cross-Sectional Technologies | 2 | Expired |
| US8375903B2 | Internal combustion engine air spring system arrangement | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.