John G. Ryan — 13 Patents at Ventritex

John G. Ryan has been granted 13 US patents while listed as an inventor at Ventritex. The first was granted in 1980 and the most recent in March 2004. John G. Ryan ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list John G. Ryan in San Jose, CA, US.

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
6704908	Method and apparatus for automatically generating a phase lock loop (PLL)	John Horan, Ciaran Cahill, Steven Dunphy, Mark Smyth, Kay Hearne +2 more	2004-03-09
6462623	Method and apparatus for PLL with improved jitter performance	John Horan, Mark Smyth, David J. Foley	2002-10-08
6414558	Method and apparatus for random sequence generator	John Horan	2002-07-02
6396424	Bubble suppression method and apparatus	Hooman Reyhani, John Horan	2002-05-28
6198420	Multiple level quantizer	John Anthony Keane, Rudolf Gerardus van Ettinger	2001-03-06
6188294	Method and apparatus for random sequence generator	John Horan	2001-02-13	$1,860,000
6044124	Delta sigma PLL with low jitter	Peter Monahan, Declan Farrelly, Nial O' hEarcain, Mark Symth	2000-03-28
5111816	System configuration for combined defibrillator/pacemaker	Benjamin D. Pless, James M. Culp	1992-05-12	$5,774,000
D319947	Combined carrying case and containers for food, drink, and pencils	—	1991-09-17
4952864	Power supply down-conversion, regulation and low battery detection system	Benjamin D. Pless	1990-08-28
4868908	Power supply down-conversion, regulation and low battery detection system	Benjamin D. Pless	1989-09-19
4866389	Circuit and method for measuring battery voltage by time of discharge of a capacitor	Roubik Gregorian	1989-09-12
D256509	Hairsetter	—	1980-08-19

John G. Ryan — 13 Patents

Issued Patents All Time

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