Robert D. Kern
42Patents
20h-index
35Co-inventors
85Inventor score
Filing activity: Jun 11, 1992 → Mar 13, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6657416B2 | Control system for stand-by electrical generator | Emerging Cross-Sectional Technologies | 74 | Expired |
| US6653821B2 | System controller and method for monitoring and controlling a plurality of generator sets | Electricity | 70 | Expired |
| US6181028A | Transfer mechanism for transferring power between a utility source and a stand-by generator | Emerging Cross-Sectional Technologies | 61 | Expired |
| US6784574B2 | Air flow arrangement for a stand-by electric generator | Emerging Cross-Sectional Technologies | 59 | Expired |
| US7591257B2 | Fuel selection device | Emerging Cross-Sectional Technologies | 53 | Active |
| US6630756B2 | Air flow arrangement for generator enclosure | Mechanical Engineering; Lighting; Heating | 52 | Expired |
| US5914467A | Automatic transfer switch with improved positioning mechanism | Electricity | 50 | Expired |
| US5489811A | Permanent magnet alternator | Emerging Cross-Sectional Technologies | 47 | Expired |
| US5831366A | Permanent magnet alternator | Emerging Cross-Sectional Technologies | 43 | Expired |
| US5376877A | Engine-driven generator | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US5504417A | Engine-driven generator | Mechanical Engineering; Lighting; Heating | 38 | Expired |
| US6863034B2 | Method of controlling a bi-fuel generator set | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6686547B2 | Relay for a transfer mechanism which transfers power between a utility source and a stand-by generator | Emerging Cross-Sectional Technologies | 32 | Expired |
| US7230345B2 | Method for exercising a stand-by electrical generator | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| USD479244S1 | Engine cover | General | 28 | Expired |
| US5861604A | Arc welder and method providing use-enhancing features | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US5537025A | Battery charger/pre-exciter for engine-driven generator | Electricity | 25 | Expired |
| US5497735A | Internal combustion engine for portable power generating equipment | Emerging Cross-Sectional Technologies | 24 | Expired |
| US6668530B2 | Grass-cutting tractor with improved operating features | Human Necessities | 20 | Expired |
| US5823752A | Adapter for mechanically coupling a pump and a prime mover | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5902094A | Flow control valve for a pressure washer | Emerging Cross-Sectional Technologies | 20 | Expired |
| USD471207S1 | Engine cover | General | 19 | Expired |
| US6045448A | Power-transmitting drive assembly with improved resilient devices | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5317999A | Internal combustion engine for portable power generating equipment | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6443130B1 | Fuel demand regulator | Emerging Cross-Sectional Technologies | 19 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.