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).

  • Patent number: 11746307
    Abstract: 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: Grant
    Filed: December 24, 2022
    Date of Patent: September 5, 2023
    Assignee: Evonik Operations GmbH
    Inventors: Zheng Xue, Andras Nagy, Dennis Parrish, Sam Christy, Jennifer Goodyear, Jeff Davidson
  • Publication number: 20230193157
    Abstract: 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: Application
    Filed: December 24, 2022
    Publication date: June 22, 2023
    Applicant: EVONIK OPERATIONS GMBH
    Inventors: Zheng Xue, Andras Nagy, Dennis Parrish, Sam Chiristy, Jennifer Goodyear, Jeff Davidson
  • Publication number: 20230137391
    Abstract: 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: Application
    Filed: December 28, 2022
    Publication date: May 4, 2023
    Applicant: Evonik Corporation
    Inventors: Sarah Smith, Gary DAVIS, Dennis PARRISH, Miyako HISAMOTO
  • Patent number: 11634621
    Abstract: 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: Grant
    Filed: November 3, 2020
    Date of Patent: April 25, 2023
    Assignee: Evonik Corporation
    Inventors: Sarah Smith, Gary Davis, Dennis Parrish, Miyako Hisamoto
  • Patent number: 11591547
    Abstract: 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: Grant
    Filed: April 26, 2018
    Date of Patent: February 28, 2023
    Assignee: Evonik Operations GmbH
    Inventors: Zheng Xue, Andras Nagy, Dennis Parrish, Sam Christy, Jennifer Goodyear, Jeff Davidson
  • Publication number: 20210047554
    Abstract: 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: Application
    Filed: November 3, 2020
    Publication date: February 18, 2021
    Applicant: Evonik Corporation
    Inventors: Sarah SMITH, Gary DAVIS, Dennis PARRISH, Miyako HISAMOTO
  • Patent number: 10865338
    Abstract: 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: Grant
    Filed: December 4, 2017
    Date of Patent: December 15, 2020
    Assignee: Evonik Corporation
    Inventors: Sarah Smith, Gary Davis, Dennis Parrish, Miyako Hisamoto
  • Publication number: 20200199492
    Abstract: 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: Application
    Filed: April 26, 2018
    Publication date: June 25, 2020
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Zheng XUE, Andras NAGY, Dennis PARRISH, Sam CHRISTY, Jennifer GOODYEAR, Jeff DAVIDSON
  • Publication number: 20180155604
    Abstract: 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: Application
    Filed: December 4, 2017
    Publication date: June 7, 2018
    Applicant: Evonik Corporation
    Inventors: Sarah Smith, Gary Davis, Dennis Parrish, Miyako Hisamoto
  • Patent number: 8883713
    Abstract: 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: Grant
    Filed: January 30, 2013
    Date of Patent: November 11, 2014
    Assignee: Evonik Industries AG
    Inventors: Dennis A. Parrish, Jens P. Hildebrand, Miyako Hisamoto
  • Patent number: 8361953
    Abstract: 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: Grant
    Filed: February 8, 2008
    Date of Patent: January 29, 2013
    Assignee: Evonik Goldschmidt Corporation
    Inventors: Andras Nagy, Saiid Mohammed, Dennis Parrish, Georg Schick, Ingo Hamann
  • Publication number: 20120328790
    Abstract: 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: Application
    Filed: September 4, 2012
    Publication date: December 27, 2012
    Applicant: Evonik Goldschmidt Corp.
    Inventors: Andras Nagy, Saiid Mohammed, Dennis Parrish, Georg Schick, Ingo Hamann
  • Publication number: 20090203571
    Abstract: 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: Application
    Filed: February 8, 2008
    Publication date: August 13, 2009
    Applicant: Evonik Goldschmidt Corp.
    Inventors: Andras Nagy, Mohammed Saiid, Dennis Parrish, Georg Schick, Ingo Hamann
  • Publication number: 20070066509
    Abstract: 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: Application
    Filed: July 31, 2006
    Publication date: March 22, 2007
    Applicant: The Procter & Gamble Company
    Inventors: Johannson Tee, Jeffrey Omnitz, Alessandro Corona, Hugo Demeyere, David Whittlinger, Saji Meledathu, Dennis Parrish
  • Publication number: 20020072601
    Abstract: 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: Application
    Filed: August 17, 2001
    Publication date: June 13, 2002
    Applicant: University of Southern Mississippi
    Inventors: Lon J. Mathias, Dennis A. Parrish, Louis Somlai