Patents by Inventor Dennis Parrish
Dennis Parrish 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: 11746307Abstract: The present invention is directed to biodegradable cleaning compositions, in particular hard surface cleaning compositions, and their use. The compositions according to the invention comprise one or more biosurfactants(s), one or more sorbitan ester(s) and one or more further surfactant(s), which is/are neither a biosurfactant nor a sorbitan ester.Type: GrantFiled: December 24, 2022Date of Patent: September 5, 2023Assignee: Evonik Operations GmbHInventors: Zheng Xue, Andras Nagy, Dennis Parrish, Sam Christy, Jennifer Goodyear, Jeff Davidson
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Publication number: 20230193157Abstract: The present invention is directed to biodegradable cleaning compositions, in particular hard surface cleaning compositions, and their use. The compositions according to the invention comprise one or more biosurfactants(s), one or more sorbitan ester(s) and one or more further surfactant(s), which is/are neither a biosurfactant nor a sorbitan ester.Type: ApplicationFiled: December 24, 2022Publication date: June 22, 2023Applicant: EVONIK OPERATIONS GMBHInventors: Zheng Xue, Andras Nagy, Dennis Parrish, Sam Chiristy, Jennifer Goodyear, Jeff Davidson
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Publication number: 20230137391Abstract: The organophilic clay comprises a smectite-type clay ion exchanged with quaternary ammonium ions, where at least 75 mol-% of said quaternary ammonium ions are bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters and at least 90% of the fatty acid moieties of the bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters have a structure RC(O) with group R being a linear alkyl or alkenyl group containing from 9 to 21 carbon atoms. The organophilic clay is useful for thickening oil based compositions, in particular drilling fluids for drilling oil or gas wells, comprising an oil phase.Type: ApplicationFiled: December 28, 2022Publication date: May 4, 2023Applicant: Evonik CorporationInventors: Sarah Smith, Gary DAVIS, Dennis PARRISH, Miyako HISAMOTO
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Patent number: 11634621Abstract: The organophilic clay comprises a smectite-type clay ion exchanged with quaternary ammonium ions, where at least 75 mol-% of said quaternary ammonium ions are bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters and at least 90% of the fatty acid moieties of the bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters have a structure RC(O) with group R being a linear alkyl or alkenyl group containing from 9 to 21 carbon atoms. The organophilic clay is useful for thickening oil based compositions, in particular drilling fluids for drilling oil or gas wells, comprising an oil phase.Type: GrantFiled: November 3, 2020Date of Patent: April 25, 2023Assignee: Evonik CorporationInventors: Sarah Smith, Gary Davis, Dennis Parrish, Miyako Hisamoto
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Patent number: 11591547Abstract: The present invention is directed to biodegradable cleaning compositions, in particular hard surface cleaning compositions, and their use. The compositions according to the invention comprise one or more biosurfactants(s), one or more sorbitan ester(s) and one or more further surfactant(s), which is/are neither a biosurfactant nor a sorbitan ester.Type: GrantFiled: April 26, 2018Date of Patent: February 28, 2023Assignee: Evonik Operations GmbHInventors: Zheng Xue, Andras Nagy, Dennis Parrish, Sam Christy, Jennifer Goodyear, Jeff Davidson
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Publication number: 20210047554Abstract: The organophilic clay comprises a smectite-type clay ion exchanged with quaternary ammonium ions, where at least 75 mol-% of said quaternary ammonium ions are bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters and at least 90% of the fatty acid moieties of the bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters have a structure RC(O) with group R being a linear alkyl or alkenyl group containing from 9 to 21 carbon atoms. The organophilic clay is useful for thickening oil based compositions, in particular drilling fluids for drilling oil or gas wells, comprising an oil phase.Type: ApplicationFiled: November 3, 2020Publication date: February 18, 2021Applicant: Evonik CorporationInventors: Sarah SMITH, Gary DAVIS, Dennis PARRISH, Miyako HISAMOTO
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Patent number: 10865338Abstract: The organophilic clay comprises a smectite-type clay ion exchanged with quaternary ammonium ions, where at least 75 mol-% of said quaternary ammonium ions are bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters and at least 90% of the fatty acid moieties of the bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters have a structure RC(O) with group R being a linear alkyl or alkenyl group containing from 9 to 21 carbon atoms. The organophilic clay is useful for thickening oil based compositions, in particular drilling fluids for drilling oil or gas wells, comprising an oil phase.Type: GrantFiled: December 4, 2017Date of Patent: December 15, 2020Assignee: Evonik CorporationInventors: Sarah Smith, Gary Davis, Dennis Parrish, Miyako Hisamoto
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Publication number: 20200199492Abstract: The present invention is directed to biodegradable cleaning compositions, in particular hard surface cleaning compositions, and their use. The compositions according to the invention comprise one or more biosurfactants(s), one or more sorbitan ester(s) and one or more further surfactant(s), which is/are neither a biosurfactant nor a sorbitan ester.Type: ApplicationFiled: April 26, 2018Publication date: June 25, 2020Applicant: EVONIK DEGUSSA GMBHInventors: Zheng XUE, Andras NAGY, Dennis PARRISH, Sam CHRISTY, Jennifer GOODYEAR, Jeff DAVIDSON
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Publication number: 20180155604Abstract: The organophilic clay comprises a smectite-type clay ion exchanged with quaternary ammonium ions, where at least 75 mol-% of said quaternary ammonium ions are bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters and at least 90% of the fatty acid moieties of the bis-(2-hydroxypropyl)-dimethylammonium fatty acid esters have a structure RC(O) with group R being a linear alkyl or alkenyl group containing from 9 to 21 carbon atoms. The organophilic clay is useful for thickening oil based compositions, in particular drilling fluids for drilling oil or gas wells, comprising an oil phase.Type: ApplicationFiled: December 4, 2017Publication date: June 7, 2018Applicant: Evonik CorporationInventors: Sarah Smith, Gary Davis, Dennis Parrish, Miyako Hisamoto
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Patent number: 8883713Abstract: The present invention is directed to compositions that are characterized by the presence of ester quats with specific characteristics that promote dispersibility at low temperature. Among the important characteristics of the ester quats are an iodine value of 65-85 and distribution of: 33-38% monoesters, 50-55% diesters and 7-12% triesters.Type: GrantFiled: January 30, 2013Date of Patent: November 11, 2014Assignee: Evonik Industries AGInventors: Dennis A. Parrish, Jens P. Hildebrand, Miyako Hisamoto
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Patent number: 8361953Abstract: The present invention is directed to rinse aid compositions with improved biodegradability that may be used in automated carwash operations to promote drying and improve the appearance of vehicles.Type: GrantFiled: February 8, 2008Date of Patent: January 29, 2013Assignee: Evonik Goldschmidt CorporationInventors: Andras Nagy, Saiid Mohammed, Dennis Parrish, Georg Schick, Ingo Hamann
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Publication number: 20120328790Abstract: The present invention is directed to rinse aid compositions with improved biodegradability that may be used in automated carwash operations to promote drying and improve the appearance of vehicles.Type: ApplicationFiled: September 4, 2012Publication date: December 27, 2012Applicant: Evonik Goldschmidt Corp.Inventors: Andras Nagy, Saiid Mohammed, Dennis Parrish, Georg Schick, Ingo Hamann
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Publication number: 20090203571Abstract: The present invention is directed to rinse aid compositions with improved biodegradability that may be used in automated carwash operations to promote drying and improve the appearance of vehicles.Type: ApplicationFiled: February 8, 2008Publication date: August 13, 2009Applicant: Evonik Goldschmidt Corp.Inventors: Andras Nagy, Mohammed Saiid, Dennis Parrish, Georg Schick, Ingo Hamann
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Publication number: 20070066509Abstract: An article comprising a multiple use fabric conditioning composition that is operably connectable to the inside of a dryer is useful for softening fabric without staining the fabric and with reduced linting.Type: ApplicationFiled: July 31, 2006Publication date: March 22, 2007Applicant: The Procter & Gamble CompanyInventors: Johannson Tee, Jeffrey Omnitz, Alessandro Corona, Hugo Demeyere, David Whittlinger, Saji Meledathu, Dennis Parrish
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Publication number: 20020072601Abstract: Amino acid derivatives are formed by reacting a tricyclic diketopiperazine with a nucleophillic compound. In a preferred embodiment, pyroglutamic diketopiperazine is reacted with an amine or an alcohol which opens the six member ring.Type: ApplicationFiled: August 17, 2001Publication date: June 13, 2002Applicant: University of Southern MississippiInventors: Lon J. Mathias, Dennis A. Parrish, Louis Somlai