Patents by Inventor John B. Welch

John B. Welch 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).

  • Liquid dishwashing detergent containing anionic surfactant, suds stabilizer and highly ethoxylated nonionic drainage promotor
    Patent number: 4492646
    Abstract: Aqueous liquid dishwashing detergent compositions are prepared containing from about 10% to about 50% of an anionic surfactant, from about 2% to about 20% of a relatively highly ethoxylated draining promoting nonionic surfactant, from about 1.5% to about 10% of a suds stabilizing nonionic surfactant, and from about 20% to about 88% water. The compositions exhibit advantages of less filming and spotting for tableware washed in dilute solutions of the compositions after rinsing and drain drying.
    Type: Grant
    Filed: February 22, 1984
    Date of Patent: January 8, 1985
    Assignee: The Procter & Gamble Company
    Inventor: John B. Welch