Lowell J. Stewart

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Poway, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Wide-swath printer/plotter using multiple printheads
- Patent number 5,861,899
- Issue date Jan 19, 1999
- Hewlett-Packard Company
- Michael A. Nguyen
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Wide-swath printer/plotter using multiple printheads
- Patent number 5,488,397
- Issue date Jan 30, 1996
- Hewlett-Packard Company
- Michael A. Nguyen
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Pen start up algorithm for black and color thermal ink-jet pens
- Patent number 5,455,608
- Issue date Oct 3, 1995
- Hewlett-Packard Company
- Lowell Stewart
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Drop size detect circuit
- Patent number 5,434,430
- Issue date Jul 18, 1995
- Hewlett-Packard Company
- Lowell Stewart
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Hybrid sample rate servo motor controller
- Patent number 4,893,066
- Issue date Jan 9, 1990
- Hewlett-Packard Company
- Lowell J. Stewart
- G05 - CONTROLLING REGULATING
Information Patent Grant
Apparatus and method for pen-lift system
- Patent number 4,567,565
- Issue date Jan 28, 1986
- Hewlett-Packard Company
- Robert D. Haselby
- G01 - MEASURING TESTING