Patents by Inventor Thomas M. Krissel

Thomas M. Krissel 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).

  • Electrostatic reproduction method and apparatus
    Patent number: 3977780
    Abstract: A copying system wherein a master of the document to be copied, such as a book, is electrostatically prepared on a copy substrate material in the form of a fanfolded web. The master bearing web is then used with an electrostatic type copier to produce the copies desired, the master bearing web being recycled the number of times required to produce the number of books desired. Each book may be segregated to permit subsequent binding where desired.
    Type: Grant
    Filed: September 25, 1974
    Date of Patent: August 31, 1976
    Assignee: Xerox Corporation
    Inventors: James R. Cassano, William A. Sullivan, Thomas M. Krissel