Richard Alden Ramsdell

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Lexington, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Toner cartridge for laser printer
- Patent number D399249
- Issue date Oct 6, 1998
- Lexmark International, Inc.
- Robert Leonard Burdick
- D18 - Printing and office machinery
Information Patent Grant
Toner cartridge with housing and pin construction
- Patent number 5,802,432
- Issue date Sep 1, 1998
- Lexmark International, Inc.
- Johnnie A. Coffey
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner cartridge with heat shield shutter
- Patent number 5,794,102
- Issue date Aug 11, 1998
- Lexmark International, Inc.
- Johnnie A. Coffey
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner cartridge with external planar installation guides
- Patent number 5,768,661
- Issue date Jun 16, 1998
- Lexmark International, Inc.
- Johnnie A. Coffey
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY