Patents by Inventor Lloyd P. Carlson

Lloyd P. Carlson 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).

  • Process for printing on corrugated paper board
    Patent number: 5032424
    Abstract: A process for printing the flat top lines of a corrugated paper board in a single pass by a sheet of the board through a top printing rotary letter press printing press and then through a varnishing equipment while the ink is still wet. The sheet having the wet ink and varnish coatings is dried under an infrared heater while forcibly holding it flat against warping.
    Type: Grant
    Filed: February 8, 1990
    Date of Patent: July 16, 1991
    Assignee: MEC Process Coating Corporation
    Inventors: Lloyd P. Carlson, Lawrence Ernst, Louis Mazzaferro