Kenneth E. Trueba

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Barcelona, ES

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Patents Grantslast 30 patents

Information Patent Grant
Solid state ink jet print head and method of manufacture
- Patent number 6,402,972
- Issue date Jun 11, 2002
- Hewlett-Packard Company
- Timothy L. Weber
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printhead with pump driven ink circulation
- Patent number 6,227,660
- Issue date May 8, 2001
- Hewlett-Packard Company
- Paul H. McClelland
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printhead with pump driven ink circulation
- Patent number 6,017,117
- Issue date Jan 25, 2000
- Hewlett-Packard Company
- Paul H. McClelland
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Bubble valving for ink-jet printheads
- Patent number 6,003,977
- Issue date Dec 21, 1999
- Hewlett-Packard Company
- Timothy L. Weber
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Solid state ink jet print head
- Patent number 6,000,787
- Issue date Dec 14, 1999
- Hewlett-Packard Company
- Timothy L. Weber
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Articulated stress relief of an orifice membrane
- Patent number 5,988,786
- Issue date Nov 23, 1999
- Hewlett-Packard Company
- David J. Waller
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS