Douglas R. Potratz

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Oshkosh, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Cylinder-specific spark ignition control system for direct fuel inj...
- Patent number 5,924,404
- Issue date Jul 20, 1999
- Brunswick Corporation
- Mark A. Ruman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Ignition coil dwell time control system
- Patent number 5,913,302
- Issue date Jun 22, 1999
- Brunswick Corporation
- Mark A. Ruman
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Stern drive marine propulsion system with automatic trim control an...
- Patent number 4,960,398
- Issue date Oct 2, 1990
- Brunswick Corporation
- Douglas R. Potratz
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT