Patents by Inventor Charles Henry Nicol

Charles Henry Nicol 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).

  • Alkyl sulfate detergent compositions
    Patent number: 4000093
    Abstract: Cellulose-based soil release ethers are used in detergent compositions containing C.sub.10 -C.sub.13 alkyl sulfate surfactants, and substantially free from interfering amounts of longer-chain length alkyl sulfates, to provide optimal soil release performance.
    Type: Grant
    Filed: April 2, 1975
    Date of Patent: December 28, 1976
    Assignee: The Procter & Gamble Company
    Inventors: Charles Henry Nicol, Michael Eugene Burns
  • Detergent compositions having improved soil release properties
    Patent number: 3962152
    Abstract: Detergent compositions containing surface-active agents and soil release polymers comprising ethylene terephthalate and polyethylene oxide terephthalate provide improved cleaning and impart a soil release finish to synthetic fabrics treated therewith.
    Type: Grant
    Filed: June 25, 1974
    Date of Patent: June 8, 1976
    Assignee: The Procter & Gamble Company
    Inventors: Charles Henry Nicol, Hugh Robert Hays