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John B. R. Dunn
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Corvallis, OR, US
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Patents Grants
last 30 patents
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Patent Grant
Techniques for providing ink-jet cartridges with a universal body s...
Patent number
6,290,348
Issue date
Sep 18, 2001
Hewlett-Packard Company
Richard A. Becker
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Bottom fill inkjet cartridge through bubble generator
Patent number
6,139,137
Issue date
Oct 31, 2000
Hewlett-Packard Company
Ralph L. Stathem
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Bottom fill inkjet cartridge through bubble generator
Patent number
5,933,175
Issue date
Aug 3, 1999
Hewlett-Packard Company
Ralph L. Stathem
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ink delivery system for an ink-jet pen
Patent number
5,153,612
Issue date
Oct 6, 1992
Hewlett-Packard Company
John B. Dunn
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
X-Y multiplex drive circuit and associated ink feed connection for...
Patent number
5,103,246
Issue date
Apr 7, 1992
Hewlett-Packard Company
John B. Dunn
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Collapsible storage bladder for ink cartridges
Patent number
5,040,001
Issue date
Aug 13, 1991
Hewlett-Packard Company
John B. Dunn
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Method and apparatus for gray scale printing with a thermal ink jet...
Patent number
4,982,199
Issue date
Jan 1, 1991
Hewlett-Packard Company
John B. R. Dunn
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Flow control system for ink cartridges
Patent number
4,931,812
Issue date
Jun 5, 1990
Hewlett-Packard Company
John B. R. Dunn
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS