Inventor
PIETRZYK JOE R
US11 patents
⚠️ This page may combine multiple inventors who share the name “PIETRZYK JOE R”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
9 patentsUS6312112B1Nov 6, 2001
Long life printhead architecture
HEWLETT PACKARD CO28 citations92
US6286941B1Sep 11, 2001
Particle tolerant printhead
HEWLETT PACKARD CO47 citations92
US6120139ASep 19, 2000
Ink flow design to provide increased heat removal from an inkjet printhead and to provide for air accumulation
HEWLETT PACKARD CO31 citations92
US5815185ASep 29, 1998
Ink flow heat exchanger for inkjet printhead
HEWLETT PACKARD CO29 citations92
US6280013B1Aug 28, 2001
Heat exchanger for an inkjet printhead
HEWLETT PACKARD CO38 citations89
US6183078B1Feb 6, 2001
Ink delivery system for high speed printing
HEWLETT PACKARD CO35 citations89
US6491364B2Dec 10, 2002
Inkjet printing with air movement system to improve dot shape
HEWLETT PACKARD CO36 citations85
US6533851B2Mar 18, 2003
Kogation reducing ink
HEWLETT PACKARD CO17 citations83
US6234622B1May 22, 2001
Ink delivery system that utilizes a separate insertable filter carrier
HEWLETT PACKARD CO12 citations73