Inventor · disambiguated record
Howard Matrick
Also filed as: MATRICK HOWARD
25 granted patents·2,928 citations·filing 1980–1996
98Inventor score
Files withDU PONT25
Top patents by PatentIndex Score
25 records- 0199US5141556APenetrants for aqueous ink jet inksDU PONT·Filed 1991·Granted Aug 25, 1992·272 cites·36 claims
- 0298US5221334AAqueous pigmented inks for ink jet printersDU PONT·Filed 1991·Granted Jun 22, 1993·304 cites·14 claims
- 0398US5169436ASulfur-containing penetrants for ink jet inksDU PONT·Filed 1992·Granted Dec 8, 1992·178 cites·19 claims
- 0497US5356464AAqueous ink compositions containing anti-curl agentsDU PONT·Filed 1993·Granted Oct 18, 1994·195 cites·11 claims
- 0597US5205861AAqueous ink jet inks containing alkylene oxide condensates of certain nitrogen heterocyclic compounds as cosolventsDU PONT·Filed 1991·Granted Apr 27, 1993·118 cites·35 claims
- 0697US5180425AAqueous ink jet inks containing polyol/alkylene oxide condensates as cosolventsDU PONT·Filed 1991·Granted Jan 19, 1993·168 cites·43 claims
- 0797US5160372AAqueous ink jet inks containing ester diol and amide diol cosolventsDU PONT·Filed 1991·Granted Nov 3, 1992·126 cites·25 claims
- 0897US5085698AAqueous pigmented inks for ink jet printersDU PONT·Filed 1990·Granted Feb 4, 1992·906 cites·25 claims
- 0995US5555008AProcess for alleviating bleed in printed elementsDU PONT·Filed 1994·Granted Sep 10, 1996·82 cites·25 claims
- 1095US5224987APenetrants for aqueous ink jet inksDU PONT·Filed 1991·Granted Jul 6, 1993·102 cites·27 claims
- 1194US5173112ANitrogen-containing organic cosolvents for aqueous ink jet inksDU PONT·Filed 1992·Granted Dec 22, 1992·98 cites·23 claims
- 1294US5169438AAqueous ink jet inks containing cycloaliphatic diol pluggage inhibitorsDU PONT·Filed 1991·Granted Dec 8, 1992·84 cites·40 claims
- 1391US4257951ATwo-step milling process for preparing pigmentary copper phthalocyanineDU PONT·Filed 1980·Granted Mar 24, 1981·23 cites·15 claims
- 1490US5268027AAlkylpolyol ethers as cosolvents for ink jet inksDU PONT·Filed 1992·Granted Dec 7, 1993·72 cites·14 claims
- 1590US5250109ADerivatives of polyoxyalkyleneamines as cosolvents for aqueous ink jet inksDU PONT·Filed 1992·Granted Oct 5, 1993·74 cites·18 claims
- 1674US5801738AProcess for alleviating bleed and improving color in printed elementsDU PONT·Filed 1996·Granted Sep 1, 1998·27 cites·18 claims
- 1769US4965172AHumidity-resistant proofing toners with low molecular weight polystyreneDU PONT·Filed 1988·Granted Oct 23, 1990·19 cites·15 claims
- 1860US4869996AProcess for preparing negative images on a positive-type tonable photosensitive elementDU PONT·Filed 1987·Granted Sep 26, 1989·15 cites·41 claims
- 1959US5416145AAqueous anionic dye based ink jet inksDU PONT·Filed 1993·Granted May 16, 1995·17 cites·11 claims
- 2051US4561899APigment toners with improved transparencyDU PONT·Filed 1984·Granted Dec 31, 1985·10 cites·6 claims
- 2150US4546072AToners treated with polymeric quaternary ammonium salts and slip agentDU PONT·Filed 1984·Granted Oct 8, 1985·10 cites·10 claims
- 2249US4565773ADry nonelectroscopic toners surface coated with nonionic siloxane-oxyalkylene block copolymerDU PONT·Filed 1983·Granted Jan 21, 1986·11 cites·8 claims
- 2346US5039588ANon-electroscopic prolonged tack tonersDU PONT·Filed 1989·Granted Aug 13, 1991·7 cites·20 claims
- 2436US4547457AProcess of preparing toner treated with polymeric quaternary ammonium salt and slip agentDU PONT·Filed 1984·Granted Oct 15, 1985·5 cites·7 claims
- 2529US4960677ADry nonelectroscopic toners surface coated with organofunctional substituted fluorocarbon compoundsDU PONT·Filed 1987·Granted Oct 2, 1990·5 cites·33 claims
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