Inventor · disambiguated record
Joseph M. Torgerson
Also filed as: TORGERSON JOSEPH · TORGERSON JOSEPH M
66 granted patents·959 citations·filing 1997–2017
99Inventor score
Files withHEWLETT PACKARD DEVELOPMENT CO36HEWLETT PACKARD CO18HEWLETT PACKARD DEVELOPMENT CO LP2AXTELL JAMES P1BAKKER CHRIS1
Top patents by PatentIndex Score
66 records- 0198US9776412B2Fluid ejection device with integrated ink level sensorHEWLETT PACKARD DEVELOPMENT CO LP·Filed 2016·Granted Oct 3, 2017·35 cites·20 claims
- 0298US9599500B2Ink level sensor and related methodsGE NING·Filed 2011·Granted Mar 21, 2017·35 cites·9 claims
- 0398US9487017B2Fluid ejection device with integrated ink level sensorHEWLETT PACKARD DEVELOPMENT CO LP·Filed 2012·Granted Nov 8, 2016·41 cites·19 claims
- 0496US8348385B2Printhead dieHEWLETT PACKARD DEVELOPMENT CO·Filed 2011·Granted Jan 8, 2013·13 cites·20 claims
- 0595US6491377B1High print quality printheadHEWLETT PACKARD CO·Filed 1999·Granted Dec 10, 2002·93 cites·35 claims
- 0694US10082414B2Ink level sensingHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Sep 25, 2018·4 cites·16 claims
- 0793US6585352B1Compact high-performance, high-density ink jet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2000·Granted Jul 1, 2003·41 cites·21 claims
- 0892US6808241B2Fluid ejection deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Oct 26, 2004·46 cites·52 claims
- 0992US6543883B1Fluid ejection device with drive circuitry proximate to heating elementHEWLETT PACKARD CO·Filed 2001·Granted Apr 8, 2003·43 cites·20 claims
- 1092US6267468B1Printhead substrate having a mixture of single and double sided elongate ink feed channelsHEWLETT PACKARD CO·Filed 2000·Granted Jul 31, 2001·49 cites·13 claims
- 1189US8960860B2Printhead dieAXTELL JAMES P·Filed 2011·Granted Feb 24, 2015·7 cites·13 claims
- 1288US7543906B2Fluid ejection device with identification cellsHEWLETT PACKARD DEVELOPMENT CO·Filed 2007·Granted Jun 9, 2009·8 cites·20 claims
- 1388US6481817B1Method and apparatus for ejecting inkHEWLETT PACKARD CO·Filed 2000·Granted Nov 19, 2002·35 cites·29 claims
- 1487US9987841B2Inkjet print head with shared data linesHEWLETT PACKARD DEVELOPMENT CO·Filed 2016·Granted Jun 5, 2018·2 cites·13 claims
- 1587US8474943B2Secure access to fluid cartridge memoryNESS ERIK D·Filed 2008·Granted Jul 2, 2013·24 cites·20 claims
- 1687US6860587B2Ink jet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Mar 1, 2005·26 cites·43 claims
- 1787US6398347B1Energy balanced ink jet printheadHEWLETT PACKARD CO·Filed 2000·Granted Jun 4, 2002·28 cites·12 claims
- 1886US6722759B2Ink jet printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Apr 20, 2004·24 cites·48 claims
- 1985US9707752B2Inkjet print head with shared data linesTORGERSON JOSEPH M·Filed 2007·Granted Jul 18, 2017·9 cites·13 claims
- 2083US8444255B2Power distribution in a thermal ink jet printheadBAKKER CHRIS·Filed 2011·Granted May 21, 2013·14 cites·19 claims
- 2183US6799822B2High quality fluid ejection deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Oct 5, 2004·19 cites·27 claims
- 2283US6422676B1Compact ink jet printheadHEWLETT PACKARD CO·Filed 2001·Granted Jul 23, 2002·25 cites·31 claims
- 2383US6309053B1Ink jet printhead having a ground bus that overlaps transistor active regionsHEWLETT PACKARD CO·Filed 2000·Granted Oct 30, 2001·26 cites·17 claims
- 2481US10378946B2Ink level sensingHEWLETT PACKARD DEVELOPMENT CO·Filed 2017·Granted Aug 13, 2019·1 cites·10 claims
- 2580US6866364B2Printhead having drop generators in staggered axis groupsHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Mar 15, 2005·17 cites·20 claims
- 2680US6315389B1Printhead having different center to center spacings between rows of nozzlesHEWLETT PACKARD CO·Filed 2000·Granted Nov 13, 2001·21 cites·11 claims
- 2779US7815287B2Fluid ejection device and methodHEWLETT PACKARD DEVELOPMENT CO·Filed 2008·Granted Oct 19, 2010·5 cites·7 claims
- 2878US6890064B2Energy balanced printhead designHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted May 10, 2005·12 cites·32 claims
- 2978US6431686B2Fluid ejection device controlled by electrically isolated primitivesHEWLETT PACKARD CO·Filed 2001·Granted Aug 13, 2002·17 cites·14 claims
- 3077US9289978B2Fluid ejection deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2014·Granted Mar 22, 2016·2 cites·13 claims
- 3176US6902252B1Fluid ejection device with staggered ink drop generatorsHEWLETT PACKARD DEVELOPMENT CO·Filed 2000·Granted Jun 7, 2005·14 cites·17 claims
- 3275US7278703B2Fluid ejection device with identification cellsHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Oct 9, 2007·13 cites·53 claims
- 3375US6234598B1Shared multiple terminal ground returns for an inkjet printheadHEWLETT PACKARD CO·Filed 1999·Granted May 22, 2001·33 cites·20 claims
- 3475US6030066AMethod and apparatus for ink jet printer color balance calibration and correctionHEWLETT PACKARD CO·Filed 1997·Granted Feb 29, 2000·36 cites·20 claims
- 3574US6726311B2Energy balanced printhead designHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Apr 27, 2004·10 cites·20 claims
- 3673US6488363B2Energy balanced printhead designHEWLETT PACKARD CO·Filed 2001·Granted Dec 3, 2002·10 cites·29 claims
- 3773US6402279B1Inkjet printhead and method for the sameHEWLETT PACKARD CO·Filed 2000·Granted Jun 11, 2002·15 cites·21 claims
- 3872US6523935B2Narrow ink jet printheadHEWLETT PACKARD CO·Filed 2001·Granted Feb 25, 2003·12 cites·42 claims
- 3971US6698857B2Method and apparatus for transferring information to a printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2003·Granted Mar 2, 2004·11 cites·20 claims
- 4071US6412917B1Energy balanced printhead designHEWLETT PACKARD CO·Filed 2001·Granted Jul 2, 2002·9 cites·21 claims
- 4169US8460947B2Fluid ejection device and methodLEIGH STAN E·Filed 2010·Granted Jun 11, 2013·5 cites·10 claims
- 4262US7488056B2Fluid ejection deviceHEWLETT PACKARD DEVELOPMENT CO·Filed 2004·Granted Feb 10, 2009·8 cites·34 claims
- 4362US6977185B2Printhead integrated circuitHEWLETT PACKARD DEVELOPMENT CO·Filed 2002·Granted Dec 20, 2005·7 cites·6 claims
- 4462US6478404B2Ink jet printheadHEWLETT PACKARD CO·Filed 2001·Granted Nov 12, 2002·7 cites·38 claims
- 4560US10272679B2Electrically connecting electrically isolated printhead die ground networks at flexible circuitHEWLETT PACKARD DEVELOPMENT CO·Filed 2016·Granted Apr 30, 2019·0 cites·16 claims
- 4660US7798616B2Fluid ejection device metal layer layoutsHEWLETT PACKARD DEVELOPMENT CO·Filed 2007·Granted Sep 21, 2010·1 cites·19 claims
- 4760US6190000B1Method and apparatus for masking address out failuresHEWLETT PACKARD CO·Filed 1999·Granted Feb 20, 2001·19 cites·28 claims
- 4858US9138990B2Fluid ejection deviceBENJAMIN TRUDY·Filed 2008·Granted Sep 22, 2015·1 cites·17 claims
- 4958US6305774B1Printhead substrate having an ink jet primitive structure that spans both edges of an ink feed channelHEWLETT PACKARD CO·Filed 2000·Granted Oct 23, 2001·7 cites·14 claims
- 5052US6582042B1Method and apparatus for transferring information to a printheadHEWLETT PACKARD DEVELOPMENT CO·Filed 2000·Granted Jun 24, 2003·4 cites·34 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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