Patents by Inventor Pieter Everhardus Overdevest

Pieter Everhardus Overdevest 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: 7488352
    Abstract: A dry cleaning process for in-home dry cleaning comprising a dry cleaning step of contacting a laundry article stained with particulate soil with a dry cleaning composition wherein the liquor to cloth ratio (w/w) (LCR) is at most 20, and wherein the composition comprises a) a non-flammable, non-chlorine containing organic dry cleaning solvent; b) a cleaning effective amount of an acid surfactant.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: February 10, 2009
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Johannes Maria Evers, Machiel Goedhart, Freddie Kerpels, Cornelis Gerhard Van Kralingen, Pieter Everhardus Overdevest, Hank Robert Reinhoudt, Karin Vrieswijk
  • Publication number: 20090007345
    Abstract: The present invention provides a safe method for cleaning fabric articles, comprising the step of treating the fabric articles with a working cyclosiloxane dry cleaning solvent to remove contaminants from the articles, wherein the working solvent is contacted and mixed with a solidifying catalyst in case of an increased temperature event. The present invention also provides a dry cleaning system suitable for carrying out the method of the invention. Since said method has improved safety, it is very suitable for in-home use.
    Type: Application
    Filed: April 12, 2005
    Publication date: January 8, 2009
    Inventors: Fred Kerpels, Pieter Everhardus Overdevest
  • Patent number: 7452384
    Abstract: A dry cleaning process for in-home dry cleaning comprising a low-aqueous dry cleaning step of contacting a laundry article with a low-aqueous dry cleaning composition, wherein said composition comprises a non-flammable, non-chlorine containing organic dry cleaning solvent, water and surfactant, whereby the water to cloth ratio (w/w) is less than 0.45 and the water to surfactant ratio (w/w) is at most 1.5, wherein said organic dry cleaning solvent is selected from hydrofluorocarbon, hydrofluoroether and siloxane solvent.
    Type: Grant
    Filed: December 3, 2003
    Date of Patent: November 18, 2008
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Johannes Maria Evers, Machiel Goedhart, Freddie Kerpels, Cornelis Gerhard Van Kralingen, Pieter Everhardus Overdevest, Hank Robert Reinhoudt, Karin Vrieswijk
  • Patent number: 7452383
    Abstract: A dry cleaning process for in-home dry cleaning comprising a low aqueous dry cleaning step of contacting a laundry article with a low aqueous dry cleaning composition wherein the liquor to cloth ratio (w/w) (LCR) is at most 20, and wherein said low aqueous composition comprises: a) at least one non-flammable, non-chlorine containing organic dry cleaning solvent; b) 0.01 to 0.9 wt. % water and c) a cleaning effective amount of a surfactant wherein said surfactant comprises at least one anionic headgroup.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: November 18, 2008
    Assignee: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Johannes Maria Evers, Machiel Goedhart, Freddie Kerpels, Cornelis Gerhard Van Kralingen, Pieter Everhardus Overdevest, Hank Robert Reinhoudt, Karin Vrieswijk
  • Patent number: 7244276
    Abstract: A dry cleaning process for in-home dry cleaning comprising a non-aqueous dry cleaning step of contacting a laundry article with a non-aqueous dry cleaning composition whereby the liquor to cloth ratio (w/w) (LCR) is at most 20, and the composition comprises a) a non-flammable, non-chlorine containing organic dry cleaning solvent; b) from 0 to 0.1 wt. % water by weight of the composition; and c) less than 0.9 wt. % of a surfactant wherein the surfactant comprises at least one anionic headgroup.
    Type: Grant
    Filed: December 1, 2003
    Date of Patent: July 17, 2007
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Johannes Maria Evers, Machiel Goedhart, Freddie Kerpels, Cornelis Gerhard Van Kralingen, Pieter Everhardus Overdevest, Hank Robert Reinhoudt, Karin Vrieswijk
  • Patent number: 6900166
    Abstract: A process for dry cleaning laundry articles comprising at least one dry cleaning step followed by at least one regeneration step wherein said regeneration step comprises contacting the articles with a regeneration composition comprising 0 to 10 wt. % of a surfactant; 0.001 to 10 wt. % of water; 0 to 50 wt. % of a cosolvent and the balance being organic dry cleaning solvent, preferably a non-flammable, non-chlorine containing organic dry cleaning solvent, wherein the regeneration composition comprises an aqueous phase having a pH of at least 5.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: May 31, 2005
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Joop Evers, Machiel Goedhart, Fred Kerpels, Cornelis Gerhard Kralingen van, Pieter Everhardus Overdevest, Hank Robert Reinhoudt, Karin Vrieswijk
  • Patent number: 6846790
    Abstract: A sequential process for dry cleaning laundry articles is provided comprising a) at least one non-aqueous dry cleaning step, b) at least one low-aqueous dry cleaning step, and, optionally, at least one rinsing step.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: January 25, 2005
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Joop Evers, Machiel Goedhart, Fred Kerpels, Cornelis Gerhard Kralingen van, Pieter Everhardus Overdevest, Hank Robert Reinhoudt, Karin Vrieswijk
  • Publication number: 20030097718
    Abstract: A sequential process for dry cleaning laundry articles is provided comprising
    Type: Application
    Filed: October 23, 2002
    Publication date: May 29, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Joop Evers, Machiel Goedhart, Fred Kerpels, Cornelis Gerhard Kralingen van, Pieter Everhardus Overdevest, Hank Robert Reinhoudt, Karin Vrieswijk
  • Publication number: 20030087782
    Abstract: A process for dry cleaning laundry articles comprising at least one dry cleaning step followed by at least one regeneration step wherein said regeneration step comprises contacting the articles with a regeneration composition comprising
    Type: Application
    Filed: October 23, 2002
    Publication date: May 8, 2003
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Joop Evers, Machiel Goedhart, Fred Kerpels, Cornelis Gerhard Kralingen van, Pieter Everhardus Overdevest, Hank Robert Reinhoudt, Karin Vrieswijk