Patents by Inventor Tal ROSENTHAL
Tal ROSENTHAL has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11815852Abstract: Herein is described a liquid electrophotographic ink composition including a carrier liquid and a resin including an acid copolymer and an acrylate copolymer, wherein the acrylate copolymer includes at least about 30 wt. % of the alkyl (meth)acrylate monomer.Type: GrantFiled: April 17, 2018Date of Patent: November 14, 2023Assignee: Hewlett-Packard Development Company, L.P.Inventors: Eyal Cohen, Albert Teishev, Reut Avigdor, Yael Kowal-Blau, Tal Rosenthal, Anatoly Sobolevsky
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Publication number: 20220066346Abstract: Disclosed herein is a liquid electrophotographic ink composition comprising a first resin comprising a copolymer of an alkylene monomer and a methacrylic acid monomer; a second resin comprising a copolymer of an alkylene monomer and from about 5 wt. % to about 11 wt. % of an acrylic acid monomer; and a colorant in an amount of at least 20 wt. % of the solids of the electrophotographic ink composition. Also disclosed herein is a method of producing a printed substrate from the liquid electrophotographic ink composition.Type: ApplicationFiled: April 30, 2019Publication date: March 3, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Reut Avigdor, Yael Kowal-Blau, Tal Rosenthal, Eyal Cohen, Albert Teishev
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Publication number: 20220011688Abstract: Described herein is a yellow liquid electrophotographic ink composition comprising: a thermoplastic resin comprising a polymer having acidic side groups; and a colorant comprising a yellow pigment, wherein the yellow pigment comprises a hydrazone compound. Also described herein is a method of producing a printed substrate using the yellow liquid electrophotographic ink composition and a printed substrate produced therefrom.Type: ApplicationFiled: September 27, 2019Publication date: January 13, 2022Applicant: Hewlett-Packard Development Company, L.P.Inventors: Keren Goldshtein, Gil BAR-HAIM, David SAVELZON, Tal ROSENTHAL, Itay EYAL, Reut AVIGDOR
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Patent number: 11109723Abstract: A toilet brush assembly is disclosed. The toilet brush assembly includes a hollow shaft body having an upper end and a bottom end, the bottom end includes a partially perforated surface, the hollow shaft body is adapted to accept a solid cleaning agent through the upper end of the hollow shaft body; and a plurality of bristles, the plurality of bristles is attached to the bottom end of the hollow shaft body.Type: GrantFiled: March 5, 2021Date of Patent: September 7, 2021Assignee: ROM Innovations Ltd.Inventor: Tal Rosenthal
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Publication number: 20210255561Abstract: Herein is described a liquid electrophotographic (LEP) ink composition comprising: a hydrocarbon carrier liquid; a resin; a colorant comprising a conjugated compound; and a component selected from: an amine-containing basic dispersant having a total base number greater than about 300 mgKOH/g material; or an amine-containing compound having a pKa of 8 or more at 25° C.; or urea.Type: ApplicationFiled: August 29, 2018Publication date: August 19, 2021Applicant: Hewlett-Packard Development Company, L.P.Inventors: Benjamin Dayan, Juilia KORNILOV, Ariel LITWAK, Gil BAR-HAIM, Tal ROSENTHAL
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Publication number: 20210186279Abstract: A toilet brush assembly is disclosed. The toilet brush assembly includes a hollow shaft body having an upper end and a bottom end, the bottom end includes a partially perforated surface, the hollow shaft body is adapted to accept a solid cleaning agent through the upper end of the hollow shaft body; and a plurality of bristles, the plurality of bristles is attached to the bottom end of the hollow shaft body.Type: ApplicationFiled: March 5, 2021Publication date: June 24, 2021Applicant: ROM Innovations Ltd.Inventor: Tal ROSENTHAL
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Publication number: 20200341401Abstract: Herein is described a liquid electrophotographic ink composition including a carrier liquid and a resin including an acid copolymer and an acrylate copolymer, wherein the acrylate copolymer includes at least about 30 wt. % of the alkyl (meth)acrylate monomer.Type: ApplicationFiled: April 17, 2018Publication date: October 29, 2020Applicant: Hewlett-Packard Development Company, L.P.Inventors: Eyal COHEN, Albert TEISHEV, Reut AVIGDOR, Yael KOWAL-BLAU, Tal ROSENTHAL, Anatoly SOBOLEVSKY
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Patent number: 10545419Abstract: Herein is disclosed magenta liquid electrostatic ink compositions. In some examples, the electrostatic ink compositions comprise a magenta pigment, a basic dispersant, a resin comprising a polymer having acidic side groups, a carrier liquid and a charge director, wherein the dispersant comprises a compound comprising a succinimide group linked to a primary, secondary or tertiary amine.Type: GrantFiled: July 17, 2015Date of Patent: January 28, 2020Assignee: HP Indigo B.V.Inventors: Gil Bar-Haim, Tal Rosenthal, Albert Teishev, Marc Klein
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Patent number: 10401751Abstract: Herein is disclosed a cyan electrostatic ink composition, the cyan electrostatic ink composition comprising: a cyan pigment, a basic dispersant, a phthalocyanine having acid groups, a resin and a charge director.Type: GrantFiled: January 30, 2015Date of Patent: September 3, 2019Assignee: HP Indigo B.V.Inventors: Tal Rosenthal, Marc Klein, Albert Teishev, Gil Bar-Haim
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Publication number: 20190018335Abstract: According to an example, a resin, a charge director, and a pigment may be ground to form a liquid electrophotographic ink.Type: ApplicationFiled: April 6, 2016Publication date: January 17, 2019Applicant: Hp Indigo B.V.Inventors: Tal Rosenthal, Marc KLEIN, Eyal BACHAR, Albert TEISHEV, Shiran ZABAR
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Publication number: 20180074424Abstract: Herein is disclosed magenta liquid electrostatic ink compositions. In some examples, the electrostatic ink compositions comprise a magenta pigment, a basic dispersant, a resin comprising a polymer having acidic side groups, a carrier liquid and a charge director, wherein the dispersant comprises a compound comprising a succinimide group linked to a primary, secondary or tertiary amine.Type: ApplicationFiled: July 17, 2015Publication date: March 15, 2018Inventors: Gil Bar-Haim, Tal Rosenthal, Albert Teishev, Marc Klein
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Publication number: 20180031994Abstract: Herein is disclosed a cyan electrostatic ink composition, the cyan electrostatic ink composition comprising: a cyan pigment, a basic dispersant, a phthalocyanine having acid groups, a resin and a charge director.Type: ApplicationFiled: January 30, 2015Publication date: February 1, 2018Inventors: Tal ROSENTHAL, Marc KLEIN, Albert TEISHEV, Gil BAR-HAIM
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Publication number: 20170139339Abstract: Herein is disclosed method of producing an electrostatic ink composition, the method comprising: mixing a pigment and a dispersant to form a pigment dispersion; wherein the pigment is acidic and the dispersant is basic or the pigment is basic and the dispersant is acidic; and then grinding the pigment dispersion with a resin, and wherein a charge director is combined with the pigment and dispersant before, during or after the grinding of the pigment dispersion with the resin to form the electrostatic ink composition.Type: ApplicationFiled: April 30, 2014Publication date: May 18, 2017Applicant: Hewlett-Packard Indigo, B.V.Inventors: Tal ROSENTHAL, Albert TEISHEV, Gil BAR-HAIM, Marc KLEIN
