John B. Keys — 9 Patents at Ncr

John B. Keys has been granted 9 US patents while listed as an inventor at Ncr. The first was granted in 1989 and the most recent in April 2011. John B. Keys ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list John B. Keys in Cambridge, OH, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7931194	Methods and apparatus for automated document examination for age verification	—	2011-04-26
6796503	Methods and apparatus for dynamic adjustment of bar code reader parameters	Kenneth Joseph Fabian	2004-09-28	$12,385,000
6695211	Methods and apparatus for enhanced scanner operation employing bar code and bar code fragment time and position of data collection	Denis M. Blanford, Kenneth Joseph Fabian, Barry M. Mergenthaler	2004-02-24	$11,176,000
6651889	Methods and apparatus for obtaining and maintaining position information for a rotating optical element in a bar code scanner	William M. Belknap	2003-11-25	$10,410,000
6454169	Methods and apparatus for obtaining and maintaining position information for a rotating optical element in a bar code scanner	William M. Belknap	2002-09-24	$3,516,000
6394351	Methods and apparatus for enhanced scanner operation employing bar code and bar code fragment time and position of data collection	Denis M. Blanford, Kenneth Joseph Fabian, Barry M. Mergenthaler	2002-05-28	$8,808,000
5603270	Quilting material handling and feeding method and apparatus	M. Burl White, Roland Bulnes, James T. Frazer	1997-02-18
4884234	Dynamic RAM refresh circuit with DMA access	David A. Rieker	1989-11-28	$10,901,000
4797932	Speaker volume control apparatus and method	John J. Rohulich	1989-01-10	$6,086,000

John B. Keys — 9 Patents

Issued Patents All Time

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