Patents by Inventor Neil B. Blake

Neil B. Blake 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).

  • Document coding
    Patent number: 4161362
    Abstract: Apparatus for selectively color marking successive copies produced in a copy machine to provide color-coded copies for routing or other identification purposes.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: July 17, 1979
    Assignee: Rank Xerox Limited
    Inventor: Neil B. Blake