Issued Patents All Time
Showing 26–50 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6173669 | Apparatus and method for inhibiting fouling of an underwater surface | — | 2001-01-16 |
| 6067847 | Running quality evaluator for an internal combustion engine | — | 2000-05-30 |
| 5936396 | Tachometer interface circuit with activated switching | — | 1999-08-10 |
| 5857450 | Low emission two cycle engine using two segment piston | — | 1999-01-12 |
| 5840164 | Galvanic isolator | — | 1998-11-24 |
| 5804712 | Oil flow sensor | — | 1998-09-08 |
| 5791951 | Clutch controller for a twin propeller marine propulsion unit | — | 1998-08-11 |
| 5775290 | Engine speed limiter which is sensitive to acceleration | Fred M. Hauenstein | 1998-07-07 |
| 5771866 | Nozzle for low pressure fuel injection system | — | 1998-06-30 |
| 5747892 | Galvanic isolator fault monitor | — | 1998-05-05 |
| 5174262 | Control valve for fuel injection | — | 1992-12-29 |
| 5092288 | Spray rail reed block | — | 1992-03-03 |
| 5022363 | Positive starting circuit | — | 1991-06-11 |
| 4986776 | Marine shift speed equalizer | Robert J. Hensel | 1991-01-22 |
| 4964385 | Engine overspeed control | — | 1990-10-23 |
| 4951620 | Positive starting circuit | — | 1990-08-28 |
| 4922866 | Fuel injector assembly | Ronald D. Stageman | 1990-05-08 |
| 4915085 | Starting enhancer and stabilizer | — | 1990-04-10 |
| 4903649 | Fuel supply system with pneumatic amplifier | — | 1990-02-27 |
| 4840148 | Two cycle engine with low pressure crankcase fuel injection | — | 1989-06-20 |
| 4777913 | Auxiliary fuel supply system | Norman H. Radtke, Leonard S. Hummel | 1988-10-18 |
| 4763625 | Cold start fuel enrichment circuit | Norman H. Radtke, Leonard S. Hummel | 1988-08-16 |
| 4763626 | Feedback fuel metering control system | — | 1988-08-16 |
| 4761992 | Knock detection circuit with gated automatic gain control | — | 1988-08-09 |
| 4750464 | Mass flow fuel injection control system | — | 1988-06-14 |