Patents by Inventor John Robert Webster

John Robert Webster 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).

  • Method of oxidatively treating a substrate with an equilibrium mixture of caro's acid and a percarboxylic acid
    Patent number: 5693185
    Abstract: A process for treating a substrate, e.g., lignocellulosic pulp or cellulosic pulps, with a mixed peracid solution comprising percarboxylic acid and Caro's acid which results in a higher conversion rate of the active oxygen in the hydrogen peroxide in order to provide an inexpensive and effective delignification and/or bleaching solution and the process for making the mixed peracid solution.
    Type: Grant
    Filed: August 30, 1996
    Date of Patent: December 2, 1997
    Assignees: North Carolina State University, E. I. Du Pont de Nemours and Company
    Inventors: Hou-Min Chang, Hasan Jameel, Junfu Song, Dingru Pan, Bijan Amini, John Robert Webster, Bruce A. Evans