Patents by Inventor Frank J. Feder

Frank J. Feder 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).

  • Modifying POSS compounds
    Patent number: 6660823
    Abstract: Method is provided for controlling the stereo chemistry of functionalities or X groups to exo or endo positions on a polyhedral oligomeric silsesquioxane (POSS) compound by adding certain reagents to said X groups to change one or more positions thereof to endo or exo. Also provided are the POSS species formed by the above inventive method. Method is also provided for inserting a ring substituent into a POSS compound. Also provided are the POSS species formed by such inventive method.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: December 9, 2003
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Joseph D. Lichtenhan, Frank J. Feder, Daravong Soulivong