John W. Gemmell

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Aliso Viejo, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Line printer hammer banks
- Patent number 8,789,922
- Issue date Jul 29, 2014
- Printronix, Inc.
- John W. Gemmell
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Line printer hammer banks
- Patent number 8,657,409
- Issue date Feb 25, 2014
- Printronix, Inc.
- John W. Gemmell
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Constant density printer system
- Patent number 6,896,429
- Issue date May 24, 2005
- Printronix, Inc.
- Dennis R. White
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Line printer with staggered magnetics
- Patent number 6,821,035
- Issue date Nov 23, 2004
- Printronix, Inc.
- John W. Gemmell
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printer hammerbank with a magnetic shunt
- Patent number 6,779,935
- Issue date Aug 24, 2004
- Printronix, Inc.
- John W. Gemmell
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
LINE PRINTER HAMMER BANKS
- Publication number 20140109778
- Publication date Apr 24, 2014
- Printronix, Inc.
- John W. Gemmell
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Constant density printer system
- Publication number 20040179881
- Publication date Sep 16, 2004
- Dennis R. White
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PRINTER HAMMERBANK WITH A MAGNETIC SHUNT
- Publication number 20040154482
- Publication date Aug 12, 2004
- John W. Gemmell
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Line printer with staggered magnetics
- Publication number 20030192440
- Publication date Oct 16, 2003
- John W. Gemmell
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS