Patents by Inventor Leon D. Robnolt, Jr.

Leon D. Robnolt, Jr. 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).

  • Detecting resin cure
    Patent number: 4103771
    Abstract: Commencement of resin cure may be visually observed by including a dye with the resin reactants; the dye imparts one color to the unreacted components and changes the color as an incident to the chemistry of gelation.
    Type: Grant
    Filed: June 11, 1976
    Date of Patent: August 1, 1978
    Assignee: Rexnord Inc.
    Inventors: Kenneth G. Klatt, Leon D. Robnolt, Jr.