Patents by Inventor Robert L. Hotchkiss

Robert L. Hotchkiss 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).

  • Sound and thermal insulation
    Patent number: 4898783
    Abstract: A thermal insulating and/or sound absorbing structure comprising a batting of resilient, elongatable, non-flammable non-linear carbonaceous fibers, said fibers having a reversible deflection ratio of greater than 1.2:1, an aspect ratio greater than 10:1 and an LOI value greater than 40.
    Type: Grant
    Filed: October 13, 1987
    Date of Patent: February 6, 1990
    Assignee: The Dow Chemical Company
    Inventors: Francis P. McCullough, Jr., Robert L. Hotchkiss, R. Vernon Snelgrove, David M. Hall, Jacqueline R. McCullough