Patents by Inventor David L. Bergeson

David L. Bergeson 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).

  • Publication number: 20040213945
    Abstract: The present invention relates to articles comprising a substrate, a release liner and an adhesive layer sandwiched between the substrate and release liner and methods of manufacturing such articles. The release liner has a relatively high coefficient of friction and has shrinkage properties that are substantially the same as or greater than the substrate. The article exhibits good roll stability, being substantially free of defects when supplied in a roll form.
    Type: Application
    Filed: May 24, 2004
    Publication date: October 28, 2004
    Applicant: 3M Innovative Properties Company
    Inventors: Suman K. Patel, Jacob J. Liu, Joseph A. Richie, Hildegard M. Schneider, David L. Bergeson
  • Patent number: 6805933
    Abstract: The present invention relates to articles comprising a retroreflective sheeting, a release liner and an adhesive layer sandwiched between the substrate and release liner and methods of manufacturing such articles. The release liner has a relatively high coefficient of friction and has shrinkage properties that are substantially the same as or greater than the retroreflective sheeting. The article exhibits good roll stability, being substantially free of defects when supplied in a roll form.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: October 19, 2004
    Assignee: 3M Innovative Properties Company
    Inventors: Suman K. Patel, Jacob J. Liu, Joseph A. Richie, Hildegard M. Schneider, David L. Bergeson
  • Patent number: 6572977
    Abstract: A fluorescent red composition providing a coating having chromaticity coordinates (x, y) within the area defined by (0.648, 0.351), (0.735, 0.265), (0.629, 0.281) and (0.565, 0.346) in terms of the CIE 1931 Standard Colorimetric System and measured using 0/45 geometry and evaluated with CIE Standard Illuminant D65 and a fluorescence luminance factor of at least about 8; articles comprising the composition or coating, and methods of making.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: June 3, 2003
    Assignee: 3M Innovative Properties Company
    Inventors: Lee A. Pavelka, David L. Bergeson, Eugene H. Carlson, Deana A. Klein, Susan T. Chrysler
  • Publication number: 20030064188
    Abstract: The present invention relates to articles comprising a substrate, a release liner and an adhesive layer sandwiched between the substrate and release liner and methods of manufacturing such articles. The release liner has a relatively high coefficient of friction and has shrinkage properties that are substantially the same as or greater than the substrate. The article exhibits good roll stability, being substantially free of defects when supplied in a roll form.
    Type: Application
    Filed: July 31, 2001
    Publication date: April 3, 2003
    Inventors: Suman K. Patel, Jacob J. Liu, Joseph A. Richie, Hildegard M. Schneider, David L. Bergeson
  • Patent number: 6312132
    Abstract: A fluorescent red article comprising a polymer matrix; and a perylene dicarboximide dye, wherein the article has chromaticity coordinates (x, y) within the area defined by (0.648, 0.351), (0.735, 0.265), (0.629, 0.281) and (0.565, 0.346) in terms of the CIE 1931 Standard Colorimetric System and measured using 0/45 geometry and evaluated with CIE Standard Illuminant D65 and a fluorescence luminance factor of at least about 8, and laminates, retroreflective materials, and methods of making thereof.
    Type: Grant
    Filed: September 12, 2000
    Date of Patent: November 6, 2001
    Assignee: 3M Innovative Properties Company
    Inventors: Lee A. Pavelka, Deana A. Klein, David L. Bergeson, Susan T. Chrysler, David M. Burns
  • Patent number: 5069964
    Abstract: A retroreflective sheeting comprising a substantially transparent face member, an encapsulating member having a front and a back side, the front side of the encapsulating member being sealed by a network of interconnecting bonds to the face member, and retroreflective elements disposed between the face member and the encapsulating member in substantially a monolayer with an air-interface. The encapsulating member comprises a plasticizer-resistant barrier layer which prevents migration of plasticizer therethrough, thereby protecting the aforementioned elements of the sheeting therefrom.
    Type: Grant
    Filed: February 22, 1991
    Date of Patent: December 3, 1991
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Howard R. Tolliver, Terry R. Bailey, David L. Bergeson
  • Patent number: 4637950
    Abstract: Cellular retroreflective sheeting, which comprises a base sheet of retroreflective elements and a polymeric cover film disposed in space relation from the base sheet by a network of narrow intersecting bonds that form hermetically sealed cells. The cover layer comprises a continuous polymeric phase and discontinuous polymeric phase and is biaxially oriented such that the discontinuous polymeric phase forms minute disks distributed throughout the film.
    Type: Grant
    Filed: May 1, 1985
    Date of Patent: January 20, 1987
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David L. Bergeson, Lee A. Pavelka, Barbara A. Mielke