Patents by Inventor Douglas K. Fossum

Douglas K. Fossum 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).

  • Patent number: 6284337
    Abstract: A security laminate comprising (1) a protective layer having a first and a second surface, (2) a pattern of low adhesion coating bonded to a portion of the second surface of the protective layer, (3) at least one emblem bonded to a portion of the low adhesion coating/protective layer composite, (4) an adhesive bonded to the emblem layer/low adhesion coating/protective layer composite, and (5) a primer is not included between the low adhesion coating and emblem layers; wherein the bond between the emblem and the protective layer and the bond between the adhesive layer and protective layer are the most tenacious bonds, and the bond between the low adhesion coating and the protective layer is the least tenacious, whereby the emblems and adhesive layers are damaged in the pattern of the low adhesion coating during delamination. Also, secured documents comprising such security laminates and a method for securing documents utilizing such security laminates.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: September 4, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Lynn E. Lorimor, Douglas K. Fossum, Frederick J. Fox
  • Patent number: 5683774
    Abstract: A security laminate comprising (1) a protective layer having a first and a second surface, (2) a pattern of low adhesion coating bonded to a portion of the second surface of the protective layer, (3) at least one emblem bonded to a portion of the low adhesion coating/protective layer composite, (4) an adhesive bonded to the emblem layer/low adhesion coating/protective layer composite, and (5) a primer is not included between the low adhesion coating and emblem layers; wherein the bond between the emblem and the protective layer and the bond between the adhesive layer and protective layer are the most tenacious bonds, and the bond between the low adhesion coating and the protective layer is the least tenacious, whereby the emblems and adhesive layers are damaged in the pattern of the low adhesion coating during delamination. Also, secured documents comprising such security laminates and a method for securing documents utilizing such security laminates.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: November 4, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Lynn E. Faykish, Douglas K. Fossum
  • Patent number: 5169707
    Abstract: A retroreflective security laminate, designed to be applied to the surface of a document over information thereon, providing dual levels of verification. The laminates have primary legends which are viewable under both ordinary diffuse lighting conditions and retroreflective viewing conditions and may also have retro-legends which are viewable only under retroreflective viewing conditions.
    Type: Grant
    Filed: May 8, 1991
    Date of Patent: December 8, 1992
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Lynn E. Faykish, Douglas K. Fossum, Wallace K. Bingham
  • Patent number: 5060981
    Abstract: A transparent overlay that can protect a document from tampering has a transparent cover sheet, a layer of hot-melt adhesive over one surface of the transparent cover sheet, and a polymeric image-receiving layer over the exposed face of said hot-melt adhesive layer. The transparent cover sheet can be a simple thermoplastic film but preferably is retroreflective sheeting which can bear a pattern or legend that is noticeable only when viewed retroreflectively. When the polymeric image-receiving layer is dye-receptive, it can be imaged by using a thermal printing head with a dye-donor element. A preferred polymeric image-receiving layer that is dye-receptive is chlorinated poly(vinylchloride).
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: October 29, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Douglas K. Fossum, Susan K. Jongewaard, John W. McConville
  • Patent number: 4968063
    Abstract: A transparent overlay that can protect a document from tampering has a transparent cover sheet, a layer of hot-melt adhesive over one surface of the transparent cover sheet, and an image formed on the exposed face of said hot-melt adhesive layer. The transparent cover sheet can be a simple thermoplastic film but preferably is retroreflective sheeting which can bear a pattern or legend that is noticeable only when viewed retroreflectively.
    Type: Grant
    Filed: September 19, 1989
    Date of Patent: November 6, 1990
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: John W. McConville, Susan K. Jongewaard, Douglas K. Fossum