Inventor · disambiguated record
Brian D. Gragg
Also filed as: GRAGG BRIAN D · GRAGG BRIAN DARRELL
15 granted patents·1 pending application·927 citations·filing 1987–2011
94Inventor score
Top patents by PatentIndex Score
16 records- 0198US5467118AInk cartridge for a hard copy printing or plotting apparatusHEWLETT PACKARD CO·Filed 1993·Granted Nov 14, 1995·239 cites·7 claims
- 0296US5757390AInk volume sensing and replenishing systemHEWLETT PACKARD CO·Filed 1995·Granted May 26, 1998·139 cites·20 claims
- 0394US5754207AVolume indicating ink reservoir cartridge systemHEWLETT PACKARD CO·Filed 1995·Granted May 19, 1998·102 cites·23 claims
- 0492US5519422AMethod and device for preventing unintended use of print cartridgesHEWLETT PACKARD CO·Filed 1993·Granted May 21, 1996·107 cites·12 claims
- 0591US5912688ASpring bag based, off axis ink delivery system and pump triggerHEWLETT PACKARD CO·Filed 1995·Granted Jun 15, 1999·86 cites·35 claims
- 0690US5886718AInk-jet off axis ink delivery systemHEWLETT PACKARD CO·Filed 1995·Granted Mar 23, 1999·85 cites·13 claims
- 0783US4806032AConical vent containing capillary boreHEWLETT PACKARD CO·Filed 1987·Granted Feb 21, 1989·40 cites·19 claims
- 0881US5877795AMethods and designs to purge air from ink tubes during initial startupHEWLETT PACKARD CO·Filed 1996·Granted Mar 2, 1999·47 cites·12 claims
- 0980US5969739AInk-jet pen with rectangular ink pipeHEWLETT PACKARD CO·Filed 1997·Granted Oct 19, 1999·45 cites·5 claims
- 1076US7712862B1Ink stalagmite detectionHEWLETT PACKARD DEVELOPMENT CO·Filed 2009·Granted May 11, 2010·5 cites·15 claims
- 1171US5574490AInk jet hard copy apparatus ink cartridgeHEWLETT PACKARD CO·Filed 1993·Granted Nov 12, 1996·27 cites·19 claims
- 1245US7774557B2Storage access system and method for image forming deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Aug 10, 2010·0 cites·27 claims
- 1342US2002186404A1Printer including video encoderFiled 2001·Application pending·0 cites
- 1440USD432999SIntegrated localization panelHEWLETT PACKARD CO·Filed 1999·Granted Oct 31, 2000·5 cites·1 claims
- 1534US7301657B2Printer including video decoderHEWLETT PACKARD DEVELOPMENT CO·Filed 2001·Granted Nov 27, 2007·0 cites·7 claims
- 1631US8702198B2Image forming apparatus and methods thereofDAVISON JUSTIN·Filed 2011·Granted Apr 22, 2014·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →