Patents by Inventor Joseph Youngblood Stuart

Joseph Youngblood Stuart 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).

  • Process for the production of methyl methacrylate
    Patent number: 6670501
    Abstract: A process for the manufacture of methyl methacrylate includes a process for separating the methyl methacrylate from certain impurities, at least one of which has a freezing point of greater than −50° C., by a fractional crystallisation process.
    Type: Grant
    Filed: April 6, 2000
    Date of Patent: December 30, 2003
    Assignee: Lucite International UK Limited
    Inventors: Stephen Patrick Harrison, William David Parten, Joseph Youngblood Stuart, John Stuart Martin