Membership
Tour
Register
Log in
David D. Helfrick
Follow
Person
San Diego, CA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Variable mapping of nozzle rows to decrease dot placement artifacts...
Patent number
6,935,714
Issue date
Aug 30, 2005
Hewlett-Packard Development Company, L.P.
Ronald A. Askeland
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Disabling ink ejection elements to decrease dot placement artifacts...
Patent number
6,832,823
Issue date
Dec 21, 2004
Hewlett-Packard Development Company, L.P.
Ronald A. Askeland
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
System and method for decreasing print banding with time delay sync...
Patent number
6,698,858
Issue date
Mar 2, 2004
Hewlett-Packard Development Company, L.P.
Ronald A. Askeland
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
Information
Patent Application
DISABLING INK EJECTION ELEMENTS TO DECREASE DOT PLACEMENT ARTIFACTS...
Publication number
20040239708
Publication date
Dec 2, 2004
Ronald A. Askeland
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
VARIABLE MAPPING OF NOZZLE ROWS TO DECREASE DOT PLACEMENT ARTIFACTS...
Publication number
20040239707
Publication date
Dec 2, 2004
Ronald A. Askeland
G06 - COMPUTING CALCULATING COUNTING