Patents by Inventor Joseph Daniel Gutmann, Jr.

Joseph Daniel Gutmann, Jr. 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).

  • Forming a solution of fluids having low miscibility and large-scale differences in viscosity
    Patent number: 6179458
    Abstract: This invention relates to mixing two substantially immiscible fluids having substantial viscosity differences into a single phase solution. The invention particular includes a mixer comprising a specially designed conveyor flights to provide shear mixing without differential conveying of the fluids or causing excessive back pressure or pressure drop on the solution.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: January 30, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert E Albers, Arthur William Etchells, Joseph Daniel Gutmann, Jr., Edgar W. Slocum, Ashok H. Shah