Patents by Inventor Richard P. Needham

Richard P. Needham 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).

  • Water soluble wire enamels
    Patent number: 4066593
    Abstract: A water soluble wire enamel having a Class F thermal rating is the reaction product of several ingredients comprising a water soluble polyester resin based on terephthalic acid and trimellitic anhydride, an ethanol-substituted amine, water, and a suitable crosslinking agent.
    Type: Grant
    Filed: October 23, 1975
    Date of Patent: January 3, 1978
    Assignee: Standard Oil Company (Indiana)
    Inventors: Thomas S. Czajka, Richard P. Needham