Patents by Inventor William James Welsh

William James Welsh 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).

  • Method and composition for cleaning polished surfaces
    Patent number: 4069066
    Abstract: Hard-surface cleaning compositions especially suited for cleaning polished surfaces contain amine compounds as impurities and a sufficient amount of a metal ion to complex the amines thereby preventing them from attacking the polish composition. Methods of using the compositions are also provided.
    Type: Grant
    Filed: November 10, 1976
    Date of Patent: January 17, 1978
    Assignee: The Procter & Gamble Company
    Inventors: Peter Hindle, William James Welsh