John K. Chester — 12 Patents at Input/Output

John K. Chester has been granted 12 US patents while listed as an inventor at Input/Output. The first was granted in 1984 and the most recent in January 2010. John K. Chester ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list John K. Chester in Brooklyn, NY, US.

Patents per Year

Issued Patents All Time

Showing 1–12 of 12 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7643375	Apparatus and method for seismic data acquisition	Phil Behn, Leo Dekkers, John Downey, Keith Elder, Jerry Iseli	2010-01-05	$20,150,000
7158445	Apparatus and method for seismic data acquisition	Lawrence Philip Behn, Leo Dekkers, John Downey, Keith Elder, Jerry Iseli	2007-01-02
5821703	Data distribution in lighting systems	Michael Callahan, Robert M. Goddard	1998-10-13
5672941	Inductorless controlled transition light dimmers optimizing output waveforms	Michael Callahan, Robert M. Goddard	1997-09-30
5629607	Initializing controlled transition light dimmers	Michael Callahan, Robert M. Goddard	1997-05-13
5455490	Power and signal distribution in lighting systems	Michael Callahan, Robert M. Goddard	1995-10-03
5319301	Inductorless controlled transition and other light dimmers	Michael Callahan, Robert M. Goddard	1994-06-07
5225765	Inductorless controlled transition and other light dimmers	Michael Callahan, Robert M. Goddard	1993-07-06
4975629	Inductorless controlled transition and other light dimmers	Michael Callahan, Robert M. Goddard	1990-12-04
4823069	Light dimmer for distributed use employing inductorless controlled transition phase control power stage	Michael Callahan, Robert M. Goddard	1989-04-18
4633161	Improved inductorless phase control dimmer power stage with semiconductor controlled voltage rise time	Michael Callahan, Robert M. Goddard	1986-12-30
4441199	Method and apparatus for amplitude limiting a composite signal	Eric Small, Eric D. Stoll	1984-04-03

John K. Chester — 12 Patents

Patents per Year

Issued Patents All Time

Patent Widget