John A. Frank

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Webster, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Ionographic imaging system
- Patent number 5,153,618
- Issue date Oct 6, 1992
- Xerox Corporation
- John A. Frank
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Apparatus for reducing the effects of ambient humidity variations u...
- Patent number 5,138,349
- Issue date Aug 11, 1992
- Xerox Corporation
- Brendan C. Casey
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Vertical line width control ionographic system
- Patent number 5,081,475
- Issue date Jan 14, 1992
- Xerox Corporation
- John A. Frank
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Ionographic imaging system
- Patent number 5,073,434
- Issue date Dec 17, 1991
- Xerox Corporation
- John A. Frank
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ionographic imaging system
- Patent number 5,039,598
- Issue date Aug 13, 1991
- Xerox Corporation
- Dennis A. Abramsohn
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Heater for ionographic marking head array
- Patent number 4,812,860
- Issue date Mar 14, 1989
- Xerox Corporation
- Nicholas K. Sheridan
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY