Patents by Inventor Maria Luz S. Wee

Maria Luz S. Wee 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).

  • Alkaline dishwasher detergent
    Patent number: 4259199
    Abstract: Alkaline dishwasher detergent composition having a specific critical pH; relatively high levels of bleach, reserve alkalinity and surfactant; and, preferably, a specific mixture of alkali metal silicates. The detergent composition is substantially free of highly alkaline materials and organic builders.
    Type: Grant
    Filed: September 18, 1979
    Date of Patent: March 31, 1981
    Assignee: The Procter & Gamble Company
    Inventors: Maria Luz S. Wee, Lawrence A. Gilbert, Jacob Mathew