Inventor
ROY JOY
US41 patents
⚠️ This page may combine multiple inventors who share the name “ROY JOY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
XEROX CORP
19 patentsUS6336699B1Jan 8, 2002
Self-cleaning wet wipe method and apparatus for cleaning orifices in an AIP type printhead
XEROX CORP63 citations94
US6861034B1Mar 1, 2005
Priming mechanisms for drop ejection devices
XEROX CORP25 citations93
US6713022B1Mar 30, 2004
Devices for biofluid drop ejection
XEROX CORP21 citations93
US6514704B2Feb 4, 2003
Quality control mechanism and process for a biofluid multi-ejector system
XEROX CORP43 citations93
US6484975B1Nov 26, 2002
Method and apparatus to achieve uniform ink temperatures in printheads
XEROX CORP21 citations93
US6154236ANov 28, 2000
Acoustic ink jet printhead design and method of operation utilizing flowing coolant and an emission fluid
XEROX CORP22 citations93
US6134291AOct 17, 2000
Acoustic ink jet printhead design and method of operation utilizing flowing coolant and an emission fluid
XEROX CORP42 citations93
US6464337B2Oct 15, 2002
Apparatus and method for acoustic ink printing using a bilayer printhead configuration
XEROX CORP20 citations92
US6428160B2Aug 6, 2002
Method for achieving high quality aqueous ink-jet printing on plain paper at high print speeds
XEROX CORP29 citations92
US6595618B1Jul 22, 2003
Method and apparatus for filling and capping an acoustic ink printhead
XEROX CORP34 citations91
US6350012B1Feb 26, 2002
Method and apparatus for cleaning/maintaining of an AIP type printhead
XEROX CORP36 citations87
US6523944B1Feb 25, 2003
Ink delivery system for acoustic ink printing applications
XEROX CORP17 citations79
US6302524B1Oct 16, 2001
Liquid level control in an acoustic droplet emitter
XEROX CORP13 citations74
US7517043B2Apr 14, 2009
Fluidic structures
XEROX CORP7 citations73
US6428159B1Aug 6, 2002
Apparatus for achieving high quality aqueous ink-jet printing on plain paper at high print speeds
XEROX CORP11 citations73
US6199970B1Mar 13, 2001
Acoustic ink jet printhead design and method of operation utilizing ink cross-flow
XEROX CORP11 citations72
US6513909B1Feb 4, 2003
Method and apparatus for moving ink drops using an electric field and transfuse printing system using the same
XEROX CORP5 citations63
US6283580B1Sep 4, 2001
Method of operation of an acoustic ink jet droplet emitter utilizing high liquid flow rates
XEROX CORP5 citations61
US6447086B1Sep 10, 2002
Method and apparatus for achieving controlled RF switching ratios to maintain thermal uniformity in the acoustic focal spot of an acoustic ink printhead
XEROX CORP1 citations49
TEKTRONIX INC
6 patentsUS5087930AFeb 11, 1992
Drop-on-demand ink jet print head
TEKTRONIX INC187 citations99
US5381162AJan 10, 1995
Method of operating an ink jet to reduce print quality degradation resulting from rectified diffusion
TEKTRONIX INC89 citations95
US5155498AOct 13, 1992
Method of operating an ink jet to reduce print quality degradation resulting from rectified diffusion
TEKTRONIX INC52 citations95
US5124716AJun 23, 1992
Method and apparatus for printing with ink drops of varying sizes using a drop-on-demand ink jet print head
TEKTRONIX INC82 citations94
US4728969AMar 1, 1988
Air assisted ink jet head with single compartment ink chamber
TEKTRONIX INC83 citations94
US5170177ADec 8, 1992
Method of operating an ink jet to achieve high print quality and high print rate
TEKTRONIX INC39 citations91
THERANOS INC
5 patentsUS9810704B2Nov 7, 2017
Systems and methods for multi-analysis
THERANOS INC22 citations93
US9592508B2Mar 14, 2017
Systems and methods for fluid handling
THERANOS INC18 citations92
US10627418B2Apr 21, 2020
Systems and methods for multi-analysis
THERANOS INC4 citations84
US10518265B2Dec 31, 2019
Systems and methods for fluid handling
THERANOS INC5 citations84
US10557863B2Feb 11, 2020
Systems and methods for multi-analysis
THERANOS INC7 citations83
LABRADOR DIAGNOSTICS LLC
5 patentsUS10856791B2Dec 8, 2020
Systems, devices, and methods for bodily fluid sample collection
LABRADOR DIAGNOSTICS LLC18 citations85
US11524299B2Dec 13, 2022
Systems and methods for fluid handling
LABRADOR DIAGNOSTICS LLC1 citations73
US11162936B2Nov 2, 2021
Systems and methods for multi-analysis
LABRADOR DIAGNOSTICS LLC6 citations73
US11054432B2Jul 6, 2021
Systems and methods for multi-purpose analysis
LABRADOR DIAGNOSTICS LLC2 citations72
US10976330B2Apr 13, 2021
Fluid handling apparatus and configurations
LABRADOR DIAGNOSTICS LLC2 citations72