Patents by Inventor Thomas S. Czajka

Thomas S. Czajka 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
  • Self-bonding polyethylene trimellitate imide varnish
    Patent number: 3944706
    Abstract: Magnet wire bearing a poly(ethylene trimellitate imide) varnish coating which is capable of forming a unitary structure after producing a fabricated article from the coated wire where the poly(ethylene trimellitate imide) cures on heating or application of electrical current.
    Type: Grant
    Filed: August 1, 1974
    Date of Patent: March 16, 1976
    Assignee: Standard Oil Company
    Inventor: Thomas S. Czajka