Patents by Inventor Charles F. Douty

Charles F. Douty 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).

  • Nitration of alkanols
    Patent number: 5162568
    Abstract: A process for nitrating alkanols containing 5-13 carbon atoms is disclosed. The nitation takes place at 15.degree.-45.degree. C. using a mixed acid containing 20-30% nitric acid, 55-60% sulfuric acid and 15-20% water, and 2-5%, based on mixed acid, of a stabilizer selected from the class consisting of urea, sulfamic acid and hydrazine.
    Type: Grant
    Filed: April 6, 1988
    Date of Patent: November 10, 1992
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Charles F. Douty