Patents by Inventor Charlene M. Hastedt

Charlene M. Hastedt 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).

  • Containing butoxy-propanol with low secondary isomer content
    Patent number: 4943392
    Abstract: Aqueous detergent compositions containing butoxy-propanol with a low level of the "secondary" isomer have improved odor characteristics with a variety of perfume compositions even when the compositions contain other typical cosolvents. Preferred compositions include hard surface cleaners having good filming and streaking properties. The compositions contain a detergent surfactant and, desirably, a detergent builder.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: July 24, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Charlene M. Hastedt, Ralph F. Medcalf, Jr., Geneva G. Otten