Inventor
FONG JON
US10 patents
⚠️ This page may combine multiple inventors who share the name “FONG JON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
9 patentsUS5751320AMay 12, 1998
Ink recharger for inkjet print cartridge having sliding valve connectable to print cartridge
HEWLETT PACKARD CO133 citations97
US5280300AJan 18, 1994
Method and apparatus for replenishing an ink cartridge
HEWLETT PACKARD CO241 citations95
US5621445AApr 15, 1997
Apparatus for refilling ink cartridges
HEWLETT PACKARD CO123 citations94
US5966156AOct 12, 1999
Refilling technique for inkjet print cartridge having two ink inlet ports for initial filling and recharging
HEWLETT PACKARD CO34 citations92
US5963238AOct 5, 1999
Intermittent refilling of print cartridge installed in an inkjet printer
HEWLETT PACKARD CO26 citations92
US5852458ADec 22, 1998
Inkjet print cartridge having a first inlet port for initial filling and a second inlet port for ink replenishment without removing the print cartridge from the printer
HEWLETT PACKARD CO25 citations92
US5777648AJul 7, 1998
Inkjet print cartridge having an ink fill port for initial filling and a recharge port with recloseable seal for recharging the print cartridge with ink
HEWLETT PACKARD CO28 citations92
US5748216AMay 5, 1998
Inkjet print cartridge having valve connectable to an external ink reservoir for recharging the print cartridge
HEWLETT PACKARD CO32 citations92
US5325119AJun 28, 1994
Variable rate spring ink pressure regulator for a thermal ink jet printer
HEWLETT PACKARD CO42 citations92