Patents by Inventor Michael Charles Harrison

Michael Charles Harrison 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).

  • Systems and methods for marking ladders using sublimation heat transfer
    Patent number: 7095428
    Abstract: Systems and methods of marking ladders. In one embodiment, a method generally includes contacting a ladder portion with an image reverse printed on a paper sheet with at least one sublimation ink, and applying heat to the paper sheet such that at least a portion of the ink sublimates from the paper sheet into the ladder portion.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: August 22, 2006
    Assignee: Louisville Ladder Group, LLC
    Inventor: Michael Charles Harrison