Patents by Inventor Henry V. Issacson

Henry V. Issacson 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).

  • Photoconductive block copolymers
    Patent number: 5080989
    Abstract: Photoconductive polycarbonate block copolymers are provided containing alternate polycarbonate blocks and photoconductor blocks. The photoconductive blocks are copolymers of polyesters and/or polycarbonates with reactive photonconductors which are preferably difunctional polyols and/or carboxylic acid derivatives. The block copolymers when blended with dyes form photoconductive layers in photoconductor elements which are photosensitive and highly resistant to solvent degradation. Dyes are aggregatable in such a block copolymer matrix.
    Type: Grant
    Filed: November 29, 1989
    Date of Patent: January 14, 1992
    Assignee: Eastman Kodak Company
    Inventors: William T. Gruenbaum, Henry V. Issacson, Jeanne E. Kaeding