Patents by Inventor Ralph K. Achgill

Ralph K. Achgill 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 preparing herbicidal ureas and insecticidal carbamates and carbamate derivatives
    Patent number: 4987233
    Abstract: The present invention provides a process for preparing herbicidal ureas and insecticidal carbamates and carbamate derivatives comprising reacting an amine, alcohol, or oxime nucleophile with a urea in an inert organic solvent.
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: January 22, 1991
    Assignee: Eli Lilly and Company
    Inventors: Ralph K. Achgill, Laurence W. Call