Inventor · disambiguated record
Frank Drogo
Also filed as: DROGO FRANK
10 granted patents·404 citations·filing 1994–2002
92Inventor score
Technology areasB41J
Top patents by PatentIndex Score
10 records- 0193US5905514AServicing system for an inkjet printheadHEWLETT PACKARD CO·Filed 1996·Granted May 18, 1999·105 cites·26 claims
- 0290US6913338B2Servicing system for an inkjet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Jul 5, 2005·44 cites·11 claims
- 0387US5600351AInkjet printer with increased print resolution in the carriage scan axisHEWLETT PACKARD CO·Filed 1994·Granted Feb 4, 1997·50 cites·20 claims
- 0487US5528269AServicing a newly-installed ink pen to eliminate uneven print quality without excessive wasting of inkHEWLETT PACKARD CO·Filed 1994·Granted Jun 18, 1996·61 cites·14 claims
- 0584US5541625AMethod for increased print resolution in the carriage scan axis of an inkjet printerHEWLETT PACKARD CO·Filed 1994·Granted Jul 30, 1996·43 cites·17 claims
- 0679US5726690AControl of ink drop volume in thermal inkjet printheads by varying the pulse width of the firing pulsesHEWLETT PACKARD CO·Filed 1994·Granted Mar 10, 1998·42 cites·3 claims
- 0773US5745140AColor ink-jet printer with pigment black and dye-based color inksHEWLETT PACKARD CO·Filed 1996·Granted Apr 28, 1998·32 cites·15 claims
- 0850USRE40294EServicing system for an inkjet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted May 6, 2008·4 cites·39 claims
- 0949US5909231AGas flush to eliminate residual bubblesHEWLETT PACKARD CO·Filed 1995·Granted Jun 1, 1999·12 cites·11 claims
- 1049US5880758APrinter with pen containing a low dot spread black ink and a high dot spread color inkHEWLETT PACKARD CO·Filed 1997·Granted Mar 9, 1999·11 cites·33 claims
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