John P. Thelen

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Otsego, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Tiller assist including hydraulic damper and power steering
- Patent number 11,077,926
- Issue date Aug 3, 2021
- John P. Thelen
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
Information Patent Grant
Tiller assist
- Patent number 10,029,774
- Issue date Jul 24, 2018
- John P. Thelen
- B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT