Inventor
WENZEL DONALD E
US17 patents
⚠️ This page may combine multiple inventors who share the name “WENZEL DONALD E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
10 patentsUS6203146B1Mar 20, 2001
Printing system with air accumulation control means enabling a semipermanent printhead without air purge
HEWLETT PACKARD CO96 citations97
US6162589ADec 19, 2000
Direct imaging polymer fluid jet orifice
HEWLETT PACKARD CO135 citations97
US5808637ASep 15, 1998
Method and apparatus for ink drop trajectory control
HEWLETT PACKARD CO27 citations92
US5700315ADec 23, 1997
Anti-outgassing ink composition and method for using the same
HEWLETT PACKARD CO28 citations92
US5473354ADec 5, 1995
Ink-delivery apparatus
HEWLETT PACKARD CO34 citations92
US4786327ANov 22, 1988
Dye preparation for thermal ink-jet printheads using ion exchange
HEWLETT PACKARD CO43 citations92
US6447102B1Sep 10, 2002
Direct imaging polymer fluid jet orifice
HEWLETT PACKARD CO28 citations91
US6378981B1Apr 30, 2002
Surfactant for inkjet service station wiper fluid
HEWLETT PACKARD CO10 citations73
US6520627B2Feb 18, 2003
Direct imaging polymer fluid jet orifice
HEWLETT PACKARD CO10 citations72
US6056396AMay 2, 2000
Anti-outgassing ink composition and method for using the same
HEWLETT PACKARD CO2 citations62