Don M. Kartchner

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Bellflower, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Gyroscopic balance unit and precessional propulsion method
- Patent number 10,551,189
- Issue date Feb 4, 2020
- Mario Fredrick McGuinness
- G01 - MEASURING TESTING

Patents Applicationslast 30 patents

Information Patent Application
Gyroscopic balance unit, 300. and precessional propulsion method
- Publication number 20190120623
- Publication date Apr 25, 2019
- Mario F. McGuinness
- G01 - MEASURING TESTING
Information Patent Application
Gyroscopic Balance Unit and Precessional Propulsion Method
- Publication number 20160161255
- Publication date Jun 9, 2016
- Mario Fredrick McGuinness
- G01 - MEASURING TESTING