Patents by Inventor Ronald Nash Duvall

Ronald Nash Duvall 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).

  • Stable acetylsalicylic acid and phenylpropanolamine salt composition
    Patent number: 4083950
    Abstract: A stable composition containing acetylsalicylic acid and a nasal decongestant is disclosed wherein the decongestant is the bitartrate or tartrate salt of phenylpropanolamine or mixture of such salts.
    Type: Grant
    Filed: March 8, 1976
    Date of Patent: April 11, 1978
    Assignee: Miles Laboratories, Inc.
    Inventors: Ronald Nash Duvall, Gerald Gold