Patents by Inventor John W. Daugherty

John W. Daugherty 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).

  • Quick drying fountain solutions
    Patent number: 4604952
    Abstract: Water based fountain solutions for use in lithographic printing. The fountain solutions contain sufficient hydrogen peroxide to cause lithographic inks to dry more quickly. Typically the fountain solutions will contain about 0.005 wt. % to about 5.0 wt. % of hydrogen peroxide. The hydrogen peroxide containing fountain solutions are typically manufactured as concentrates which are diluted with water at the printing sites to form the proper strength fountain solutions required for printing. The hydrogen peroxide containing fountain solutions are used in conventional lithographic printing processes.
    Type: Grant
    Filed: June 14, 1985
    Date of Patent: August 12, 1986
    Assignee: Inmont Corporation
    Inventor: John W. Daugherty