Patents by Inventor Karel Dusek

Karel Dusek 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).

  • Polymer having network structure
    Patent number: 6545118
    Abstract: A series of polymeric compositions, methods of making the compositions and uses of the compositions are described. An exemplary composition is made by copolymerization of a trifunctional amine or hydroxy compound, a monofunctional amine or hydroxy compound and a polyisocyanate compound.
    Type: Grant
    Filed: November 8, 2001
    Date of Patent: April 8, 2003
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Jeffry J. Fedderly, John D. Lee, Gilbert F. Lee, Bruce Hartmann, Karel Dusek, Jan Somvarsky
  • Process for producing transparent gels with improved mechanical and sorption properties from copolymers of 2-hydroxyethyl methacrylate and amides of acrylic or methacrylic acid
    Patent number: 3948841
    Abstract: A process for producing transparent hydrophilic gels having improved mechanical and sorption properties made from copolymers of 2-hydroxyethyl methacrylate and amides of methacrylic or acrylic acid, wherein said 2-hydroxyethyl methacrylate is copolymerized with about 20 to 90 weight percent of said methacrylamide or about 20 to 80 weight percent of said acrylamide in the presence of a crosslinking agent and a diluent, and the gels thus obtained are further modified by heating in an aqueous medium.
    Type: Grant
    Filed: May 9, 1974
    Date of Patent: April 6, 1976
    Inventor: Karel Dusek