Patents by Inventor Donald F. Durso

Donald F. Durso 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 preparation of cellulose ether derivatives
    Patent number: 4254258
    Abstract: There is disclosed an improved process for preparing cellulose ether derivatives which in pertinent part accomplishes this by providing for the uniform distribution of caustic and etherifying reagents over the exposed area of fiberized, never-dried, non-purified natural polysaccharide materials by fluidizing said materials while simultaneously contacting the material with said reagents.
    Type: Grant
    Filed: March 28, 1979
    Date of Patent: March 3, 1981
    Assignee: Texas A & M University System
    Inventor: Donald F. Durso