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SIMMONS JOHN

US4 patents

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US4717386AJan 5, 1988

Safety device for a needle

SIMMONS JOHN80 citations94
US8138844B1Mar 20, 2012

System and method for crystal oscillator frequency tuning

SIMMONS JOHN4 citations57
US8593231B2Nov 26, 2013

System and method for amplitude contorl of a crystal oscillator

SIMMONS JOHN0 citations36
US8559904B2Oct 15, 2013

System and method for duty cycle control of a crystal oscillator

SIMMONS JOHN0 citations36