Patents by Inventor Charles E. Aiman

Charles E. Aiman 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 2-imidazolones
    Patent number: 5338862
    Abstract: The present invention pertains to a process for producing a 2-imidazolone from a ureidoacetal. The ureidoacetal is subjected to an acid catalyzed condensation in order to produce the 2-imidazolone. The reaction is conducted in an alcoholic solvent in order to minimize the production of a polymeric by-product.
    Type: Grant
    Filed: March 29, 1993
    Date of Patent: August 16, 1994
    Assignee: Merrell Dow Pharmaceuticals Inc.
    Inventors: Charles E. Aiman, Edward D. Daugs