John S. Donovan

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Detroit, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Non biased push-pull amplifiers
- Patent number 4,688,000
- Issue date Aug 18, 1987
- John S. Donovan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Symmetrical discriminator and demodulator
- Patent number 4,562,403
- Issue date Dec 31, 1985
- John S. Donovan
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Gas operated automatic weapon
- Patent number 4,450,752
- Issue date May 29, 1984
- John S. Donovan
- F41 - WEAPONS
Information Patent Grant
Radar system for collision avoidance
- Patent number 4,403,220
- Issue date Sep 6, 1983
- John S. Donovan
- G01 - MEASURING TESTING
Information Patent Grant
Gas operated automatic weapon
- Patent number 4,270,437
- Issue date Jun 2, 1981
- John S. Donovan
- F41 - WEAPONS
Information Patent Grant
Gas operated automatic weapon
- Patent number 4,253,378
- Issue date Mar 3, 1981
- John S. Donovan
- F41 - WEAPONS
Information Patent Grant
Ammunition belt
- Patent number 4,223,590
- Issue date Sep 23, 1980
- John S. Donovan
- F42 - AMMUNITION BLASTING
Information Patent Grant
Gas operated automatic weapon
- Patent number 4,210,060
- Issue date Jul 1, 1980
- John S. Donovan
- F41 - WEAPONS
Information Patent Grant
Shift control system for multi-stage transmission
- Patent number 3,983,405
- Issue date Sep 28, 1976
- John S. Donovan
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...