Patents by Inventor Robert Otis Keys

Robert Otis Keys 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).

  • Fabric softening compound
    Patent number: 7015187
    Abstract: The present invention relates to a biodegradable softener compounds with an acid value of no more than 6.5. A process for making said compound is also provided.
    Type: Grant
    Filed: February 3, 2005
    Date of Patent: March 21, 2006
    Assignee: The Procter & Gamble Company
    Inventors: Hugo Jean-Marie Demeyere, Robert Otis Keys, Jans-Jürgen Köhle, Johan De Poortere, Errol Hoffman Wahl
  • Fabric softening compound
    Publication number: 20040214743
    Abstract: The present invention relates to a biodegradable softener compounds with an acid value of no more than 6.5. A process for making said compound is also provided.
    Type: Application
    Filed: May 24, 2004
    Publication date: October 28, 2004
    Applicant: The Procter & Gamble Company
    Inventors: Hugo Jean-Marie Demeyere, Robert Otis Keys, Jans-Jurgen Kohle, Johan De Poortere, Errol Hoffman Wahl
  • Fabric softening compound
    Patent number: 6759383
    Abstract: The present invention relates to a biodegradable softener compounds with an acid value of no more than 6.5. A process for making said compound is also provided. The softener can be incorporated into softener compositions to form solid and liquid compositions, including liquid dispersions and clear compositions.
    Type: Grant
    Filed: December 19, 2002
    Date of Patent: July 6, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Hugo Jean-Marie Demeyere, Robert Otis Keys, Jans-Jürgen Köhle, Johan De Poortere, Errol Hoffman Wahl
  • Fabric softening compound
    Publication number: 20030119701
    Abstract: The present invention relates to a biodegradable softener compounds with an acid value of no more than 6.5. A process for making said compound is also provided.
    Type: Application
    Filed: December 19, 2002
    Publication date: June 26, 2003
    Applicant: The Procter & Gamble Company
    Inventors: Hugo Jean-Marie Demeyere, Robert Otis Keys, Jans-Jurgen Kohle, Johan De Poortere, Errol Hoffman Wahl
  • Quaternary fatty acid triethanolamine ester salts and their use as fabric softeners
    Patent number: 6521589
    Abstract: The present invention relates to biodegradable softener compounds of the formula (1): [(R)4-m—N(+)—[(CH2)n—Y—R1]m]X(−) with an acid value of no more than 6.5. A process for making said compound is also provided. The softener can be incorporated into softener compositions to form solid and liquid compositions, including liquid dispersions and clear compositions.
    Type: Grant
    Filed: December 22, 1999
    Date of Patent: February 18, 2003
    Assignee: The Procter & Gamble Company
    Inventors: Hugo Jean-Marie Demeyere, Robert Otis Keys, Jans-Jürgen Köhle, Johan De Poortere, Errol Hoffman Wahl
  • QUATERNARY FATTY ACID TRIETHANOLAMINE ESTER SALTS AND THEIR USE AS FABRIC SOFTENERS
    Publication number: 20020037825
    Abstract: The present invention relates to biodegradable softener compounds of the formula (1): [(R)4-m—N(+)—[(CH2)n—Y—R1]m]X(−) with an acid value of no more than 6.5. A process for making said compound is also provided. The softener can be incorporated into softener compositions to form solid and liquid compositions, including liquid dispersions and clear compositions.
    Type: Application
    Filed: December 22, 1999
    Publication date: March 28, 2002
    Inventors: HUGO JEAN-MARIE DEMEYERE, ROBERT OTIS KEYS, JANS-JURGEN KOHLE, JOHAN DE POORTERE, ERROL HOFFMAN WAHL
  • Concentrated fabric softening composition with good freeze/thaw recovery and highly unsaturated fabric softener compound therefor
    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
  • Concentrated fabric softening composition with good freeze/thaw recovery and highly unsaturated fabric softener compound therefor
    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