Patents by Inventor John R. Hollahan

John R. Hollahan 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).

  • Oxygen post-treatment of plastic surfaces coated with plasma polymerized silicon-containing monomers
    Patent number: 4137365
    Abstract: The abrasion resistance of plastic surfaces coated with polymerized organosilanes can be significantly improved by post-treatment of the polymerized silane in an oxygen plasma. For optical purposes, the advantages of this post-treatment are developed with a transparent polycarbonate resin substrate coated with plasma polymerized vinyltrimethoxysilane.
    Type: Grant
    Filed: March 21, 1977
    Date of Patent: January 30, 1979
    Inventors: James C. Administrator of the National Aeronautics and Space Administration, with respect to an invention of Fletcher, Theodore J. Wydeven, Jr., John R. Hollahan