Patents by Inventor Paul Rolland Austin

Paul Rolland Austin 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).

  • Chitin solution
    Patent number: 4059457
    Abstract: Solutions of chitin in dimethylacetamide, N-methylpyrrolidone or mixtures of these in combination with a minor proportion of lithium chloride.
    Type: Grant
    Filed: September 30, 1976
    Date of Patent: November 22, 1977
    Assignee: The University of Delaware
    Inventor: Paul Rolland Austin
  • Chitin as an extender and filter for tobacco
    Patent number: 3987802
    Abstract: Chitin, either as such or in toasted form, has been found to be an effective extender and filter for tobacco. It can be used in substantial amounts with tobacco blends without adversely affecting such physical properties as packing ability, burning rate or retention of ash. Organoleptic properties such as aroma, taste and smoothness are little affected. To the degree that chitin is used in the mixture, nicotine and noxious tars are reduced. Mixtures of chitin and tobacco represent new compositions.
    Type: Grant
    Filed: March 5, 1975
    Date of Patent: October 26, 1976
    Assignee: The University of Delaware
    Inventor: Paul Rolland Austin