Inventor
TSANG JOSEPH W
US34 patents
⚠️ This page may combine multiple inventors who share the name “TSANG JOSEPH W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HEWLETT PACKARD CO
15 patentsUS6150433ANov 21, 2000
Ink-jet ink compositions containing modified macromolecular chromophores with covalently attached polymers
HEWLETT PACKARD CO92 citations98
US6450632B1Sep 17, 2002
Underprinting fluid compositions to improve inkjet printer image color and stability
HEWLETT PACKARD CO74 citations96
US6323257B1Nov 27, 2001
Ink-jet ink compositions containing reactive macromolecular chromophores for digital and textile printing
HEWLETT PACKARD CO77 citations96
US6221932B1Apr 24, 2001
Covalent attachment of polymers onto macromolecular chromophores by nucleophilic substitution reaction for inkjet printing
HEWLETT PACKARD CO69 citations96
US6034153AMar 7, 2000
Mediation of waterfastness in ink-jet ink compositions by using partial chemically-treated macromolecular chromophores (MMCS)
HEWLETT PACKARD CO25 citations93
US5985016ANov 16, 1999
Purification of macromolecular chromophores (MMCs) using membrane processes for ink-jet inks
HEWLETT PACKARD CO48 citations93
US5891232AApr 6, 1999
Smearfastness and fast drying times in inks containing macromolecular chromophores
HEWLETT PACKARD CO49 citations93
US5886065AMar 23, 1999
Mediation of waterfastness in ink-jet ink compositions by using partial chemically-treated macromolecular chromophores (MMCs)
HEWLETT PACKARD CO22 citations93
US5830265ANov 3, 1998
Counterion substitution in macromolecular chromophore (MMC) for ink-jet printing including textile, large format and office format printers
HEWLETT PACKARD CO32 citations93
US5749952AMay 12, 1998
Preparation of microemulsion and micellar color inks from modified water-soluble color chromaphores for thermal ink-jet printing
HEWLETT PACKARD CO29 citations93
US5891934AApr 6, 1999
Waterfast macromolecular chromophores using amphiphiles
HEWLETT PACKARD CO75 citations91
US5853465ADec 29, 1998
Black-to-color bleed alleviation using non-specific ionic, pH, and colloidal effects
HEWLETT PACKARD CO37 citations91
US6468340B1Oct 22, 2002
Laked dye solubilization with complexing agent
HEWLETT PACKARD CO9 citations74
US6177485B1Jan 23, 2001
Polymers derived from unsaturated surfactants for use in ink-jet inks
HEWLETT PACKARD CO6 citations74
US5788753AAug 4, 1998
Polyamines complexed to anionic dyes, thereby forming water-soluble cationic dyes
HEWLETT PACKARD CO16 citations70
HEWLETT PACKARD DEVELOPMENT CO
11 patentsUS6924054B2Aug 2, 2005
Fuel supply for a fuel cell
HEWLETT PACKARD DEVELOPMENT CO110 citations97
US6818334B2Nov 16, 2004
Accelerated hydrogen generation through reactive mixing of two or more fluids
HEWLETT PACKARD DEVELOPMENT CO61 citations96
US6602335B2Aug 5, 2003
Pigment solubilization via treatment with strong base and substitution
HEWLETT PACKARD DEVELOPMENT CO22 citations93
US7128997B2Oct 31, 2006
Method and system for dispensing pelletized fuel for use with a fuel cell
HEWLETT PACKARD DEVELOPMENT CO33 citations91
US6982128B2Jan 3, 2006
Co-catalyst proton exchange membrane fuel cell utilizing borohydride fuels
HEWLETT PACKARD DEVELOPMENT CO7 citations74
US6786957B2Sep 7, 2004
Aqueous ink-jet inks for printing on commercial offset coated media
HEWLETT PACKARD DEVELOPMENT CO7 citations74
US7446134B2Nov 4, 2008
Polymeric additives to improve print quality and permanence attributes in ink-jet inks
HEWLETT PACKARD DEVELOPMENT CO2 citations63
US7291418B2Nov 6, 2007
Methods and systems for elevating a temperature within a fuel cell
HEWLETT PACKARD DEVELOPMENT CO2 citations63
US7435291B2Oct 14, 2008
Amine- and phthalocyanine dye-containing ink-jet inks with improved ozone fastness
HEWLETT PACKARD DEVELOPMENT CO3 citations62
US7241527B2Jul 10, 2007
Method and apparatus for facilitating a chemical reaction
HEWLETT PACKARD DEVELOPMENT CO5 citations62
US7829608B2Nov 9, 2010
Polymeric additives to improve print quality and permanence attributes in ink-jet inks
HEWLETT PACKARD DEVELOPMENT CO0 citations52
US NAVY
4 patentsUS10344160B1Jul 9, 2019
Super-hydrophobic epoxy resin compositions
US NAVY9 citations83
US10000643B1Jun 19, 2018
Waterborne corrosion resistant organic primer compositions
US NAVY5 citations73
US9458329B1Oct 4, 2016
Corrosion protection by coatings that include organic additives
US NAVY3 citations73
US10711154B1Jul 14, 2020
Curing agents for hydrophobic epoxy compositions
US NAVY1 citations62