Michael A. Calkins

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El Cajon, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Pressure-controlled fuel injection for internal combustion engines
- Patent number RE33270
- Issue date Jul 24, 1990
- BKM, Inc.
- Niels J. Beck
- 123 - Internal-combustion engines
Information Patent Grant
Pressure-controlled fuel injection for internal combustion engines
- Patent number 4,628,881
- Issue date Dec 16, 1986
- BKM, Inc.
- Niels J. Beck
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS