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Ulrich E. Hess
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Corvallis, OR, US
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Patents Grants
last 30 patents
Information
Patent Grant
Fluid-ejection devices and a deposition method for layers thereof
Patent number
7,517,060
Issue date
Apr 14, 2009
Hewlett-Packard Development Company, L.P.
Ulrich E. Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Fluid-ejection devices and a deposition method for layers thereof
Patent number
7,025,894
Issue date
Apr 11, 2006
Hewlett-Packard Development Company, L.P.
Ulrich E. Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Printhead having a thin film membrane with a floating section
Patent number
6,974,548
Issue date
Dec 13, 2005
Hewlett-Packard Development Company, L.P.
Matthew D Giere
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Printhead having a thin film membrane with a floating section
Patent number
6,626,523
Issue date
Sep 30, 2003
Hewlett-Packard Development Company, L.P.
Matthew D Giere
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ink jet pen with a heater element having a contoured surface
Patent number
6,485,128
Issue date
Nov 26, 2002
Hewlett-Packard Company
Nagwa M. Elshaik
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
High efficiency ink delivery printhead having improved thermal char...
Patent number
6,273,555
Issue date
Aug 14, 2001
Hewlett-Packard Company
Ulrich E Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Transition metal carbide films for applications in ink jet printheads
Patent number
6,209,991
Issue date
Apr 3, 2001
Hewlett-Packard Company
Michael J Regan
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Special geometry ink jet resistor for high dpi/high frequency struc...
Patent number
5,808,640
Issue date
Sep 15, 1998
Hewlett-Packard Company
Eldurkar V. Bhaskar
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Method for forming a bipolar integrated ink jet printhead driver
Patent number
5,681,764
Issue date
Oct 28, 1997
Hewlett-Packard Company
Ulrich E. Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Edge feed ink delivery thermal inkjet printhead structure and metho...
Patent number
5,635,966
Issue date
Jun 3, 1997
Hewlett-Packard Company
Brian J. Keefe
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Thermal inkjet printer printhead with offset heater resistors
Patent number
5,635,968
Issue date
Jun 3, 1997
Hewlett-Packard Company
Eldurkar V. Bhaskar
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Bipolar integrated ink jet printhead driver
Patent number
5,598,189
Issue date
Jan 28, 1997
Hewlett-Packard Company
Ulrich E. Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Thermal inkjet printhead structure and method for making the same
Patent number
5,159,353
Issue date
Oct 27, 1992
Hewlett-Packard Company
Duane A. Fasen
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Thermal inkjet printhead having driver circuitry thereon and method...
Patent number
5,122,812
Issue date
Jun 16, 1992
Hewlett-Packard Company
Ulrich E. Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Integrated thermal ink jet printhead and method of manufacture
Patent number
4,719,477
Issue date
Jan 12, 1988
Hewlett-Packard Company
Ulrich E. Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
Information
Patent Application
Fluid-ejection devices and a deposition method for layers thereof
Publication number
20060125882
Publication date
Jun 15, 2006
Ulrich E. Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Fluid-ejection devices and a deposition method for layers thereof
Publication number
20040070649
Publication date
Apr 15, 2004
Ulrich E. Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Printhead having a thin film membrane with a floating section
Publication number
20030189622
Publication date
Oct 9, 2003
Matthew D. Giere
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Printhead having a thin film membrane with a floating section
Publication number
20030081074
Publication date
May 1, 2003
Matthew D. Giere
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Deposition method for a passivation layer of a fluid ejection device
Publication number
20030071877
Publication date
Apr 17, 2003
Ulrich E. Hess
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS