Richard D. Murphy

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a page-wide piezoelectric ink jet print engine
- Patent number 5,787,558
- Issue date Aug 4, 1998
- Compaq Computer Corporation
- Richard D. Murphy
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Page-wide piezoelectric ink jet print engine with circumferentially...
- Patent number 5,767,878
- Issue date Jun 16, 1998
- Compaq Computer Corporation
- Richard D. Murphy
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method of manufacturing ink jet printheads by induction heating of...
- Patent number 5,479,684
- Issue date Jan 2, 1996
- Compaq Computer Corporation
- Richard D. Murphy
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS