Patents by Inventor Robert Richard Dykstra

Robert Richard Dykstra 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: 6800771
    Abstract: The invention relates to stabilized amido acid compositions. More particularly, the invention relates to compositions of amido acids, such as 6-nonanoylamidohexanoic acid, stabilized with antioxidants. The stabilized amido acid compositions are useful in the manufacture of bleach activators such as sodium nonanamidohexanoyloxybenzenesulfonate. Bleach activators made from the stabilized amido acids of the invention are capable of possessing improved coloration.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: October 5, 2004
    Inventors: Dale Elbert Van Sickle, George Chester Zima, Jeffrey Scott DuPont, Robert Richard Dykstra
  • Publication number: 20040110648
    Abstract: Perfume polymeric particles, polymeric particles having affinities for certain perfume raw materials, compositions containing them and methods for making the same are provided.
    Type: Application
    Filed: October 28, 2003
    Publication date: June 10, 2004
    Inventors: Glenn Thomas Jordan, Bernard William Kluesener, Mark Robert Sivik, Vicente Santamarina, Robert Richard Dykstra, Natalia N.L. Lebedev, Lois Sara Gallon, Ellen Schmidt Baker, Patrick Amrhein, Dieter Boeckh, Stefan Frenzel, Ekkehard Jahns, Volker Schwendemann
  • Publication number: 20040091445
    Abstract: Rinse-off personal care compositions comprising a perfume polymeric particle, which is useful as a delivery system for a perfume raw material (“PRM”), methods for making such personal care compositions and methods of treating substrates, such as skin and/or hair with such personal care compositions are provided.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 13, 2004
    Applicant: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Lois Sara Gallon, Mannie Lee Clapp, George Endel Deckner
  • Publication number: 20040092414
    Abstract: Rinse-off personal care compositions comprising a perfume polymeric particle, which is useful as a delivery system for a perfume raw material (“PRM”), methods for making such personal care compositions and methods of treating substrates, such as skin and/or hair with such personal care compositions are provided.
    Type: Application
    Filed: October 31, 2003
    Publication date: May 13, 2004
    Inventors: Mannie Lee Clapp, Robert Richard Dykstra, Rebecca Ann Taylor
  • Publication number: 20040087454
    Abstract: The first aspect of the present invention relates to a photo-activated pro-accord conjugate having the formula: 1
    Type: Application
    Filed: December 4, 2003
    Publication date: May 6, 2004
    Inventors: Robert Richard Dykstra, Gregory Scot Miracle
  • Publication number: 20040087476
    Abstract: Benefit agent delivery systems, compositions incorporating such benefit agent delivery systems, and methods for making the delivery system in the compositions are provided. The benefit agent delivery systems of the present invention employ polymer particles having affinities for selected benefit agents, such as perfume, to form the polymeric assisted benefit agent delivery systems, which can effectively deposit benefit agents onto, onto the surface of a substrate, e.g., fabrics being laundered, hard surfaces, hair, skin or nails.
    Type: Application
    Filed: October 28, 2003
    Publication date: May 6, 2004
    Inventors: Robert Richard Dykstra, Lois Sara Gallon, Mannie Lee Clapp
  • Publication number: 20040087453
    Abstract: The present invention relates to photo-labile pro-fragrance conjugates comprising:
    Type: Application
    Filed: October 24, 2003
    Publication date: May 6, 2004
    Applicant: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Gregory Scot Miracle, Lon Montgomery Gray
  • Publication number: 20040053809
    Abstract: The invention relates to stabilized amido acid compositions. More particularly, the invention relates to compositions of amido acids, such as 6-nonanoylamidohexanoic acid, stabilized with antioxidants. The stabilized amido acid compositions are useful in the manufacture of bleach activators such as sodium nonanamidohexanoyloxybenzenesulfonate. Bleach activators made from the stabilized amido acids of the invention are capable of possessing improved coloration.
    Type: Application
    Filed: September 3, 2003
    Publication date: March 18, 2004
    Inventors: Dale Elbert Van Sickle, George Chester Zima, Jeffrey Scott DuPont, Robert Richard Dykstra
  • Patent number: 6660712
    Abstract: The invention relates to stabilized amido acid compositions. More particularly, the invention relates to compositions of amido acids, such as 6-nonanoylamidohexanoic acid, stabilized with antioxidants. The stabilized amido acid compositions are useful in the manufacture of bleach activators such as sodium nonanamidohexanoyloxybenzenesulfonate. Bleach activators made from the stabilized amido acids of the invention are capable of possessing improved coloration.
    Type: Grant
    Filed: June 1, 2001
    Date of Patent: December 9, 2003
    Inventors: Dale Elbert Van Sickle, George Chester Zima, Jeffrey Scott DuPont, Robert Richard Dykstra
  • Patent number: 6610646
    Abstract: The present invention relates to sustained release fragrance accords wherein the initial fragrance release or bouquet is not distorted by the presence of an unbalanced accord. The systems of the present invention comprise: a) a pro-fragrance component; and b) a free fragrance component. The present invention further relates to compositions comprising the fragrance raw materials systems and processes for preparing said systems.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: August 26, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Gregory Scot Miracle, Robert Richard Dykstra, Lynette Anne Makins Holland, Jill Maureen Mattila
  • Publication number: 20030158079
    Abstract: The present invention relates to a benefit agent delivery system that can, when directly applied to a substrate, provide a longer benefit term than when a benefit agent alone is applied to said substrate. Typical benefit agents include perfume raw materials such as perfume aldehydes and ketones.
    Type: Application
    Filed: September 26, 2002
    Publication date: August 21, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Lon Montgomery Gray, Gregory Scot Miracle, Lois Sara Gallon, Peter James Malton
  • Publication number: 20030134772
    Abstract: Disclosed herein are benefit agent delivery systems which are formed by separately adding to a liquid or granular matrix certain kinds of primary amine compounds and selected types of benefit agents, e.g., perfumes, in the form of aldehydes or ketones. When substrate surfaces are treated with aqueous solutions or dispersions of such delivery systems, the benefit agent is indirectly exposed to and preferably deposited on the substrate surface in such a manner that it provides its benefit to the surface for a longer period of time than when the amine compound is not present. Such benefit agent delivery systems are especially suitable for incorporation into laundry detergent or other fabric-treating products.
    Type: Application
    Filed: October 11, 2002
    Publication date: July 17, 2003
    Inventors: Robert Richard Dykstra, Lon Montgomery Gray, Lois Sara Gallon, Johan Smets, Abdennaceur Fredj, Daniel Jerome White
  • Publication number: 20030125220
    Abstract: The present invention relates to photo-labile pro-fragrances, as well as a fragrance raw material delivery system comprising:
    Type: Application
    Filed: August 12, 2002
    Publication date: July 3, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Lon Montgomery Gray
  • Patent number: 6583095
    Abstract: The present invention relates to an improved process for synthesizing organic compounds for use as bleach activators.
    Type: Grant
    Filed: May 7, 2001
    Date of Patent: June 24, 2003
    Assignee: Procter & Gamble Company
    Inventors: Jeffrey Scott Dupont, Robert Richard Dykstra
  • Patent number: 6527690
    Abstract: The invention relates to a process for purifying and decolorizing a phenyl ester salt. The process combines a phenyl ester salt with a solvent to form a mixture and then stirs the mixture to form a slurry. The phenyl ester salt is substantially insoluble in this solvent. The process then collects the phenyl ester salt from the slurry. The collected phenyl ester salt may then be optionally dried or recrystallized. The collected phenyl ester salt is dissolved in a solvent to form a solution. The solution is decolorized and then spray dried to form a powder of the phenyl ester salt. As a result of the process the phenyl ester salt powder has a higher purity and an improved color as compared to the starting phenyl ester salt.
    Type: Grant
    Filed: June 4, 2001
    Date of Patent: March 4, 2003
    Inventors: Bhaskar Krishna Arumugam, Michael Eugene Burns, Dimmick Lee Bymaster, Jeffrey Scott DuPont, Robert Richard Dykstra, Robert Lee Eagan, Eddie Joseph Eckart, Jarvey Eugene Felty, Jr., Kevin John Fontenot, Jeffrey William Green, Shane Kipley Kirk, Gary Paul Lutz, Tony Lee Sander, Thomas Hugh Williams, George Chester Zima
  • Patent number: 6514925
    Abstract: N,N diacyl O-substituted imide bleach activators and compositions employing them are provided. The activators have the general formula: wherein X is selected from O, NR16 and S; e is 0 or 1; f is 0 or 1; R16 is selected from H and C1-C4 linear or branched, saturated or unsaturated alkyl groups; and R1 is preferably phenyl or C7-C13 linear or branched chain, saturated or unsaturated alkyl; R2 is preferably C1-C10 branched or unbranched, saturated or unsaturated alkyl and R3 is preferably C1-C12 linear or branched chain, saturated or unsaturated alkyl. Bleach additive and bleaching compositions including the bleach activators and methods of cleaning fabrics are also provided.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: February 4, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Gregory Scot Miracle, Robert Richard Dykstra
  • Publication number: 20030004072
    Abstract: The first aspect of the present invention relates to a photo-activated pro-accord conjugate having the formula: 1
    Type: Application
    Filed: March 26, 2002
    Publication date: January 2, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Gregory Scot Miracle
  • Publication number: 20020128505
    Abstract: The invention relates to a process for purifying and decolorizing a phenyl ester salt. The process combines a phenyl ester salt with a solvent to form a mixture and then stirs the mixture to form a slurry. The phenyl ester salt is substantially insoluble in this solvent. The process then collects the phenyl ester salt from the slurry. The collected phenyl ester salt may then be optionally dried or recrystallized. The collected phenyl ester salt is dissolved in a solvent to form a solution. The solution is decolorized and then spray dried to form a powder of the phenyl ester salt. As a result of the process the phenyl ester salt powder has a higher purity and an improved color as compared to the starting phenyl ester salt.
    Type: Application
    Filed: June 4, 2001
    Publication date: September 12, 2002
    Inventors: Bhaskar Krishna Arumugam, Michael Eugene Burns, Dimmick Lee Bymaster, Jeffrey Scott Dupont, Robert Richard Dykstra, Robert Lee Eagan, Eddie Joseph Eckart, Jarvey Eugene Felty, Kevin John Fontenot, Jeffrey William Green, Shane Kipley Kirk, Gary Paul Lutz, Tony Lee Sander, Thomas Hugh Williams, George Chester Zima
  • Publication number: 20020123445
    Abstract: Novel bleaching compositions comprising organic catalyst compounds, preferably branched organic catalyst compounds, and an anionic surfactant, methods for laundering fabrics using such bleaching compositions, and laundry additive products containing such bleaching compositions are provided.
    Type: Application
    Filed: February 27, 2002
    Publication date: September 5, 2002
    Applicant: The Procter & Gamble Company
    Inventors: Robert Richard Dykstra, Marc Eric Gustwiller, Tonya Ann Howard
  • Publication number: 20020103101
    Abstract: The invention relates to stabilized amido acid compositions. More particularly, the invention relates to compositions of amido acids, such as 6-nonanoylamidohexanoic acid, stabilized with antioxidants. The stabilized amido acid compositions are useful in the manufacture of bleach activators such as sodium nonanamidohexanoyloxybenzenesulfonate. Bleach activators made from the stabilized amido acids of the invention are capable of possessing improved coloration.
    Type: Application
    Filed: June 1, 2001
    Publication date: August 1, 2002
    Inventors: Dale Elbert Van Sickle, George Chester Zima, Jeffrey Scott DuPont, Robert Richard Dykstra