Patents by Inventor Richard W. Fletcher

Richard W. Fletcher 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).

  • Nitramine oxetanes and polyethers formed therefrom
    Patent number: 4707540
    Abstract: Nitramine oxetanes, specifically 3-methyl nitraminomethyl-3-methyl oxetane and 3,3-Bis (methyl nitraminomethyl) oxetane are synthesized. Polyethers are formed incorporating the nitramine oxetanes, which polyethers are curable with isocyanates to form elastomers suitable for use as binders in propellants or the like.
    Type: Grant
    Filed: October 29, 1986
    Date of Patent: November 17, 1987
    Assignee: Morton Thiokol, Inc.
    Inventors: Gerald E. Manser, Richard W. Fletcher