Patents by Inventor Jeffrey K. Hecht

Jeffrey K. Hecht 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).

  • Organic photoconducting compositions containing aromatic sulfonyl fluorides and their use in electrophotographic processes
    Patent number: 4088482
    Abstract: Photoconductive compositions containing aromatic sulfonyl fluorides are novel compositions which are useful in electrophotographic processes, such as xerography. E.g., an electrostatic copying paper is obtained by coating an electroconductive base paper with a composition comprising poly(N-vinylcarbazole) and 4,4'-biphenyldisulfonyl fluoride.
    Type: Grant
    Filed: July 13, 1971
    Date of Patent: May 9, 1978
    Assignee: The Dow Chemical Company
    Inventors: Ralph G. Czerepinski, Jeffrey K. Hecht, Thomas T. Chiu