Patents by Inventor Thomas Stephen Dawson

Thomas Stephen Dawson 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).

  • Synthesis of dimethylaminoethyl methylmethacrylate
    Patent number: 4059617
    Abstract: Yield of dimethylaminoethyl methacrylate from the reaction of methacrylic acid with dimethylaminoethanol is increased by carrying out the reaction under reflux conditions in presence of catalyst selected from sodium phenoxide and sodium 4-methoxyphenoxide and with incremental addition of the dimethylaminoethanol as the reaction proceeds. Yields as high as 89 percent are reported.
    Type: Grant
    Filed: April 29, 1976
    Date of Patent: November 22, 1977
    Assignee: American Cyanamid Company
    Inventors: Terence Foster, Thomas Stephen Dawson