John McElvain — 2 Patents at Xerox

John McElvain has been granted 2 US patents while listed as an inventor at Xerox. The first was granted in 2009 and the most recent in April 2011. John McElvain ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John McElvain in Manhattan Beach, CA, US.

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Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7920293	System and method for patterned encoded halftoning	Charles M. Hains	2011-04-05	$7,410,000
7583412	System and method for creating patterned encoded halftones	Charles M. Hains	2009-09-01	$5,174,000

John McElvain — 2 Patents

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