Patents Represented by Attorney Gary L. Griwold
  • Patent number: 5437812
    Abstract: Fluorine-containing liquid crystal compounds are provided. The compounds comprise a fluorocarbon terminal portion having at least one catenary ether oxygen and a hydrocarbon terminal portion, the terminal portion being connected by a central core, the compounds having smectic mesophases or having latent smectic mesophases.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: August 1, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Eugene P. Janulis, Gilbert C. Johnson, Patricia M. Savu, Terence D. Spawn, Marc D. Radcliffe
  • Patent number: 5270088
    Abstract: A graphic package comprises a plurality of graphics including at least a first graphic and a second graphic. The package further includes a dual function separating layer which is intermediate the first and second graphics. The separating layer comprises a substrate having an upper surface and a lower surface. A release coating is provided on the upper surface of the substrate for releasably retaining the first graphic on the substrate and an adhesive is provided on the lower surface of the substrate for temporarily bonding the second graphic to the substrate. The graphic package may be a pad or a roll.
    Type: Grant
    Filed: March 18, 1992
    Date of Patent: December 14, 1993
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Peter B. Grasse
  • Patent number: D382353
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: August 12, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Michael S. Berger