Inventor
DROGO FRANK
US10 patents
⚠️ This page may combine multiple inventors who share the name “DROGO FRANK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
8 patentsUS5905514AMay 18, 1999
Servicing system for an inkjet printhead
HEWLETT PACKARD CO105 citations95
US5600351AFeb 4, 1997
Inkjet printer with increased print resolution in the carriage scan axis
HEWLETT PACKARD CO50 citations95
US5528269AJun 18, 1996
Servicing a newly-installed ink pen to eliminate uneven print quality without excessive wasting of ink
HEWLETT PACKARD CO61 citations95
US5745140AApr 28, 1998
Color ink-jet printer with pigment black and dye-based color inks
HEWLETT PACKARD CO32 citations92
US5541625AJul 30, 1996
Method for increased print resolution in the carriage scan axis of an inkjet printer
HEWLETT PACKARD CO43 citations92
US5726690AMar 10, 1998
Control of ink drop volume in thermal inkjet printheads by varying the pulse width of the firing pulses
HEWLETT PACKARD CO42 citations89
US5880758AMar 9, 1999
Printer with pen containing a low dot spread black ink and a high dot spread color ink
HEWLETT PACKARD CO11 citations73
US5909231AJun 1, 1999
Gas flush to eliminate residual bubbles
HEWLETT PACKARD CO12 citations71