Richard E. Schumaker — 9 Patents at Printronix

Richard E. Schumaker has been granted 9 US patents while listed as an inventor at Printronix. The first was granted in 1986 and the most recent in August 2007. Richard E. Schumaker ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Richard E. Schumaker in Orange, CA, US.

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
7261479	RFID tag, antenna, and printer system	Gordon B. Barrus, Andrew Edwards, Kevin Mark Smith, Duane Gibbs, Rudy Concepcion, Jr.	2007-08-28	$697,000
7066667	RFID tag and printer system	Theodore Chapman, Andrew Edwards, Stephen Morris, James Harkins, Bradley S. Jarvis	2006-06-27	$779,000
7037009	RFID tag, antenna, and printer system	Gordon B. Barrus, Andrew Edwards, Kevin Mark Smith, Duane Gibbs, Rudy Concepcion, Jr.	2006-05-02	$1,019,000
6929412	RFID tag, antenna, and printer system	Gordon B. Barrus, Andrew Edwards, Duane Gibbs, Kevin Mark Smith, Rudy Concepcion Jr.	2005-08-16	$1,187,000
6899476	RFID tag, antenna, and printer system	Gordon B. Barrus, Andrew Edwards, Kevin Mark Smith, Duane Gibbs, Rudy Concepcion, Jr.	2005-05-31	$1,141,000
5595446	Printer power supply	Gordon B. Barrus	1997-01-21	$1,975,000
4679191	Variable bandwidth switching system	Gary A. Nelson, Patrick N. Godding, Keith D. Walter, Edward S. Marrone, Stillman E. Gates +2 more	1987-07-07
4597077	Integrated voice/data/control switching system	Gary A. Nelson, Patrick N. Godding, Keith D. Walter, Edward S. Marrone, Stillman F. Gates +2 more	1986-06-24
4587651	Distributed variable bandwidth switch for voice, data, and image communications	Gary A. Nelson, Patrick N. Godding, Keith D. Walter, Edward S. Marrone, Stillman F. Gates +2 more	1986-05-06

Richard E. Schumaker — 9 Patents

Issued Patents All Time

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