Patents Represented by Attorney Carolyn A. Fischer

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  • Segmented organic light emitting device
    Patent number: 7271534
    Abstract: The invention relates to organic electronic devices and methods of manufacture comprising at least two segments, each segment comprising an organic electronic light-emitting device wherein each segment is defined by peripheral edges; wherein each segment comprises a first electrical contact disposed on a first peripheral edge and a second electrical contact disposed on a different peripheral edge than the first electrical contact and the electrical contacts of each segment are joined in electrical communication with a conductive material.
    Type: Grant
    Filed: November 4, 2003
    Date of Patent: September 18, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Raghunath Padiyath, Jon E. Ottman, David A. Engler
  • Article comprising fluorochemical surface layer
    Patent number: 7267850
    Abstract: The invention relates to display and protective articles having a fluorochemical surface layer, and methods of making such articles. The invention also relates to fluoropolyether acrylate compositions.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: September 11, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: William D. Coggio, Thomas P. Klun, Mark J. Pellerite, George G. I. Moore, Cheryl L. S. Eisbernd, Sharon Wang, Richard S. Buckanin, Christopher B. Walker, Jr., Naiyong Jing, Zai-Ming Qiu
  • Durable high index nanocomposites for AR coatings
    Patent number: 7264872
    Abstract: The present invention includes ultraviolet curable compositions preferably containing discrete, crystalline zirconia nanoparticles with reactive, or copolymerizable, surface modification, in a polymerizable monomer/oligomer resin mixture. It is believed that copolymerizable surface modification provides a functional group that enables the functionalized particle to co-polmerize with the reactive monomers, oligomers, and crosslinkers in the formulation. Relative to surface modification of the nanoparticles, acrylate functionality is preferred over methacrylate functionality. On the other hand, methacrylate functionality is preferred over non-reactive, or nonpolymerizable, functionality. As the nanocomposite cures, the resultant network is heavily crosslinked by selection of raw materials with substantial acrylate functionality.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: September 4, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Christopher B. Walker, Jr., Brant U. Kolb, Emily S. Goenner, Vivian W. Jones, Sharon Wang, Joan M. Noyola
  • Retroreflective sheeting having high retroreflectance at low observation angles
    Patent number: 7188960
    Abstract: The present invention relates to retroreflective sheeting.
    Type: Grant
    Filed: September 2, 2005
    Date of Patent: March 13, 2007
    Assignee: 3M Innovative Properties Company
    Inventor: Kenneth L. Smith
  • Durable optical element
    Patent number: 7179513
    Abstract: A durable optical film includes a polymerized optical film structure having a microstructured surface and a scratch contrast ratio value in a range of 1.0 to 1.65 or 1.0 to 1.15. These durable optical films can include a plurality of nanoparticles and a rounded prism apexes microstructure.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: February 20, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Emily S. Goenner, John T. Brady, Christopher A. Haak
  • Method for forming ceramic microstructures on a substrate using a mold and articles formed by the method
    Patent number: 7176492
    Abstract: A microstructured assembly including a barrier portions and land portions is described. The microstructures have alternating barrier portions and land portions that have barrier surfaces and land surfaces, respectively. Each barrier surface and land surface is connected by curved surface, which is part of a curved portion. The curved surface and the land surface are substantially continuous.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: February 13, 2007
    Assignee: 3M Innovative Properties Company
    Inventor: Raymond Chi-Hing Chiu
  • Methods of making microstructured lamina and apparatus
    Patent number: 7174619
    Abstract: The present invention relates to methods of making microstructured laminae for replication and apparatus. In a preferred embodiment, the invention relates to machining V-shaped grooves on individual lamina forming cube-corner microstructures.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: February 13, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Lars A. Smeenk, Conrad V. Anderson, Nelson D. Sewall, Kenneth L. Smith
  • Stain repellent optical hard coating
    Patent number: 7173778
    Abstract: A hard coating composition for use as a stain repellent single layer on an optical display. The coating composition adds a monomer of a mono or multi(methyl)acrylate bearing at least one monovalent hexafluoropolypropylene oxide derivative and a free radically reactive compatibilizer consisting of either a fluoroalkyl-group containing acrylate compatibilizer or a fluoroalkylene-group containing acrylate compatibilizer to a conventional hydrocarbon-based hard coat formulation. The resultant coating is substantially smooth and forms a durable surface layer that has low surface energy that is stain and ink repellent.
    Type: Grant
    Filed: May 4, 2005
    Date of Patent: February 6, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Naiyong Jing, Zai-Ming Qiu, Thomas P. Klun, Richard J. Pokorny, George G. I. Moore, Mark J. Pellerite
  • Retroreflective elements and articles
    Patent number: 7168815
    Abstract: The present invention relates to retroreflective elements and retroreflective articles such as pavement markings comprising retroreflective elements, methods of making retroreflective elements, and laminates.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: January 30, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Rebecca A. Shipman, Craig S. Chamberlain, James D. Heininger, Thomas P. Hedblom, Douglas E. Weiss, Gerald S. Deeb
  • Pavement marking composition comprising ceramic fibers
    Patent number: 7169831
    Abstract: The invention relates to a pavement marking composition comprising ceramic fibers. The ceramic fibers are preferably randomly dispersed within a polymeric material. The polymeric material preferably comprises a substantially non-crosslinked elastomer. The pavement marking composition is preferably formed into a sheet material such as a tape.
    Type: Grant
    Filed: February 18, 2002
    Date of Patent: January 30, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Randall H. Helland, Eric E. Rice
  • High refractive index pressure-sensitive adhesives
    Patent number: 7166686
    Abstract: The present invention provides pressure-sensitive adhesives having a refractive index of at least 1.48. The pressure-sensitive adhesives comprise at least one monomer containing a substituted or an unsubstituted aromatic moiety.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: January 23, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: David B. Olson, Bettie C. Fong, Ying-Yuh Lu, Cheryl L. Moore, Todd R. Williams
  • Retroreflective elements and articles
    Patent number: 7156528
    Abstract: The present invention relates to retroreflective elements and retroreflective articles such as pavement markings comprising retroreflective elements, methods of making retroreflective elements, and laminates.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: January 2, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Douglas E. Weiss, Rebecca A. Shipman, Craig S. Chamberlain, James D. Heininger, Thomas P. Hedblom, Gerald S. Deeb
  • Lamina comprising cube corner elements and retroreflective sheeting
    Patent number: 7156527
    Abstract: The present invention is directed to lamina(e) comprising cube corner elements, a tool comprising an assembly of laminae and replicas thereof. The invention further relates to retroreflective sheeting.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: January 2, 2007
    Assignee: 3M Innovative Properties Company
    Inventor: Kenneth L. Smith
  • Lamina comprising cube corner elements and retroreflective sheeting
    Patent number: 7152983
    Abstract: The present invention is directed to lamina(e) comprising cube corner elements, a tool comprising an assembly of laminae and replicas thereof. The invention further relates to retroreflective sheeting.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: December 26, 2006
    Assignee: 3M Innovative Properties Company
    Inventor: Kenneth L. Smith
  • Modified copolyesters and improved multilayer reflective films
    Patent number: 7150907
    Abstract: A multilayered polymer film includes a first set of optical layers and a second set of optical layers. The first set of optical layers is made from a polyester which is often birefringent. The polyesters of the first set of optical layers typically have a composition in which 70–100 mol % of the carboxylate subunits are first carboxylate subunits and 0–30 mo1 % are comonomer carboxylate subunits and 70 to 100 mol % of the glycol subunits are first glycol subunits and 0 to 30 mol % of the glycol subunits are comonomer glycol subunits, where at least 0.5 mol % of the combined carboxylate and glycol subunits are comonomer carboxylate or comonomer glycol subunits. The multilayered polymer film may be used to form, for example, a reflective polarizer or a mirror.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: December 19, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Timothy J. Hebrink, William W. Merrill, Carl A. Stover
  • Method of accelerated testing of illuminated device components
    Patent number: 7124651
    Abstract: Methods and devices for accelerated light stability testing are described. The method comprises exposing a component to light having a total irradiance at wavelengths between 300 nm and 500 nm wherein the irradiance at wavelengths ranging from 300 nm to 350 nm is less than 3.1% of the total irradiance; the irradiance at wavelengths ranging from greater than 350 nm to 380 nm ranges from 0.2% to 2.2% of the total irradiance; the irradiance at wavelengths ranging from greater than 380 nm to 420 nm ranges from 4.5% to 9.1% of the total irradiance; and the irradiance at wavelength ranging from greater than 420 nm to 500 nm ranges from about 86% to about 95% of the total irradiance.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: October 24, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Warren D. Ketola, Richard M. Fischer, Jr.
  • Article comprising fluorochemical surface layer
    Patent number: 7101618
    Abstract: The invention relates to display and protective articles having a fluorochemical surface layer, and methods of making such articles. The invention also relates to fluoropolyether acrylate compositions.
    Type: Grant
    Filed: May 7, 2004
    Date of Patent: September 5, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: William D. Coggio, Thomas P. Klun, Mark J. Pellerite, George G. I. Moore, Cheryl L. S. Elsbernd, Sharon Wang, Richard S. Buckanin, Christopher B. Walker, Jr., Naiyong Jing, Zai-Ming Qiu
  • Durable optical element
    Patent number: 7074463
    Abstract: A durable optical film or element includes a polymerized structure having a microstructured surface and a plurality of surface modified colloidal nanoparticles of silica, zirconia, or mixtures thereof. Display devices including the durable microstructured film are also described.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: July 11, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Clinton L. Jones, Brant U. Kolb, Emily S. Goenner, John T. Brady, Christopher A. Haak
  • Retroreflective article comprising water-borne acrylic topcoats
    Patent number: 7048989
    Abstract: The invention relates to retroreflective articles such as retroreflective sheeting that comprises a core sheet comprising retroreflective elements and a topcoat wherein the topcoat comprises certain water-borne acrylic polymer(s).
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: May 23, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Robert F. Watkins, Terry R. Bailey, Joey L. Reule, Scott A. Boyd
  • Method for forming microstructures on a substrate using a mold
    Patent number: 7033534
    Abstract: In a method of making a microstructured assembly, a substantially uniform coating of a curable material is formed on a substrate with the coating defining a leading edge. The coating is contacted with a mold starting at the leading edge to form in the curable material a plurality of barrier regions connected by intervening land regions. The curable material is cured and the mold is removed. Optionally, the coating includes a binder. Such a coating can optionally be debinded. In addition, the coating can be fired to form ceramic microstructures.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: April 25, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Raymond Chi-Hing Chiu, Kenneth Robert Dillon