Patents by Inventor Eugene Robert Carr

Eugene Robert Carr 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: 6486121
    Abstract: Fabric softener compounds having the formula: [RC(O)]nN+(R1)mX− wherein each R in a compound is a C6-C22 hydrocarbyl group, preferably having an IV from about 70 to about 140 based upon the IV of the equivalent fatty acid, n is a number from 1 to three on the weight average in any mixture of compounds, each R1 in a compound is a C1-3 alkyl or hydroxy alkyl group, the total of n and the number of R1 groups that are hydroxyethyl groups equaling 3, n+m=4 and X is a softener compatible anion, preferably methyl sulfate, the compound, or mixtures of such compounds, having (a) either a Hunter “L” transmission of at least about 85, typically from about 85 to about 95, preferably from about 90 to about 95, more preferably above about 95, if possible, (b) only non-detectable levels, at the conditions of use, of odorous compounds selected from the group consisting of: isopropyl acetate, which should be, less than about 5, preferably less than about 3, and more preferably less
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: November 26, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Errol Hoffman Wahl, Toan Trinh, Eugene Robert Carr, James J. MacDonald, Zaiyou Liu, Alex Haejoon Chung
  • Publication number: 20010004635
    Abstract: Fabric softener compounds having the formula: [RC(O)]nN+(R1)mX−wherein each R in a compound is a C6-C22 hydrocarbyl group, preferably having an IV from about 70 to about 140 based upon the IV of the equivalent fatty acid, n is a number from 1 to three on the weight average in any mixture of compounds, each R1 in a compound is a C1-3 alkyl or hydroxy alkyl group, the total of n and the number of R1 groups that are hydroxyethyl groups equaling 3, n+m−4 and X is a softener compatible anion, preferably methyl sulfate, the compound or mixtures of such compounds, having (a) either a Hunter “L” transmission of at least about 85, typically from about 85 to about 95, preferably from about 90 to about 95, more preferably about 95, if possible, (b) only non-detectable levels, at the conditions of use, of odorous compounds selected from the group consisting of: isopropyl acetate, which should be less than about 5, preferably less than about 3, and more preferably less than abou
    Type: Application
    Filed: November 18, 1999
    Publication date: June 21, 2001
    Inventors: ERROL HOFFMAN WAHL, TOAN TRINH, EUGENE ROBERT CARR, JAMES J. MACDONALD, ZAIYOU LIU, ALEX HAEJOON CHUNG
  • Patent number: 5877145
    Abstract: Biodegradable fabric softener compounds that contain ester linkages a substantial level of polyunsaturation in the hydrophobic chains. The compounds can be used to form fabric softening compositions that are aqueous dispersions of the compounds or clear compositions. These compositions have a desirable low viscosity and recover, after freezing and thawing to have a stable low viscosity.
    Type: Grant
    Filed: January 26, 1998
    Date of Patent: March 2, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Errol Hoffman Wahl, Helen Bernardo Tordil, Toan Trinh, Eugene Robert Carr, Robert Otis Keys, Laura Marie Meyer, Hugo Jean Marie Demeyere, Dean Larry DuVal, Mitsuyo Okamoto
  • Patent number: 5759990
    Abstract: Biodegradable fabric softener compounds that contain ester linkages a substantial level of polyunsaturation in the hydrophobic chains. The compounds can be used to form fabric softening compositions that are aqueous dispersions of the compounds or clear compositions. These compositions have a desirable low viscosity and recover, after freezing and thawing to have a stable low viscosity.
    Type: Grant
    Filed: October 21, 1996
    Date of Patent: June 2, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Errol Hoffman Wahl, Helen Bernardo Tordil, Toan Trinh, Eugene Robert Carr, Robert Otis Keys, Laura Marie Meyer