Patents by Inventor Michael D. Schaffer

Michael D. Schaffer 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: 20200028117
    Abstract: A display film includes a transparent polymeric substrate layer and a transparent energy dissipation layer disposed on the transparent polymeric substrate layer. The transparent energy dissipation layer includes cross-linked polyurethane and a polyacrylate polymer. The transparent energy dissipation layer has a glass transition temperature of 27 degrees Celsius or less and a Tan Delta peak value of 0.5 or greater.
    Type: Application
    Filed: November 30, 2017
    Publication date: January 23, 2020
    Inventors: Karissa L. ECKERT, David Scott THOMPSON, Ryan M. BRAUN, Catherine A. LEATHERDALE, Michael A. JOHNSON, Steven D. SOLOMONSON, Richard J. POKORNY, John J. STRADINGER, Kevin R. SCHAFFER, Joseph D. RULE, Peter D. CONDO, Derek W. PATZMAN
  • Publication number: 20190211168
    Abstract: A display film includes a transparent cross-linked polyurethane acrylate layer. The transparent cross-linked polyurethane acrylate layer having a glass transition temperature of 10 degrees Celsius or less and a Tan Delta peak value of 0.5 or greater.
    Type: Application
    Filed: June 6, 2017
    Publication date: July 11, 2019
    Inventors: David Scott THOMPSON, Steven D. SOLOMONSON, Karissa Lynn ECKERT, John James STRADINGER, Catherine A. LEATHERDALE, Peter D. CONDO, Richard J. POKORNY, Ryan M. BRAUN, Michael A. JOHNSON, Joseph D. RULE, Kevin R. SCHAFFER, Derek W. PATZMAN
  • Publication number: 20190197220
    Abstract: A system includes one or more server hardware computing devices includes one or more processors and memory storing instructions that, when executed by the one or more processors, cause the system to receive a request to verify an identity of a user attempting to complete an examination provided by an online proctored examination platform to a candidate user authorized to complete the examination and repeatedly, at a predefined interval during the examination, determine, based at least in part on user data collected by the online proctored examination platform during the examination, the user data identifying the user at a time that the interval elapses, whether the user is the candidate user, and, responsive to a determination that the user is not the candidate user, perform one or more of a plurality of actions associated with a failed identity verification, the plurality of actions including stopping the examination.
    Type: Application
    Filed: March 28, 2018
    Publication date: June 27, 2019
    Inventors: Gregory ANDERSON, Wayne BAILEY, Colleen M. DOLAN, Jide FAJOBI, Darrick JENSEN, Ronald D. LANCASTER, JR., Matthew MALONEY, Michael NEALIS, Steven C. NORDBERG, Peter PASCALE, Andrew STOCKINGER, Julianne Michael Schaffer
  • Patent number: 10295724
    Abstract: This application describes a back-lit transmissive display including a transmissive display and a variable index light extraction layer optically coupled to a lightguide. The variable index light extraction layer has first regions of nanovoided polymeric material and second regions of the nanovoided polymeric material and an additional material. The first and second regions are disposed such that for light being transported at a supercritical angle in the lightguide, the variable index light extraction layer selectively extracts the light in a predetermined way based on the geometric arrangement of the first and second regions. The transmissive display may be a transmissive display panel or a polymeric film such as a graphic.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: May 21, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: David Scott Thompson, Kevin R. Schaffer, Zhaohui Yang, Encai Hao, Audrey A. Sherman, Michael A. Meis, John A. Wheatley, Matthew S. Stay, Robert F. Kamrath, Mikhail L. Pekurovsky, Steven D. Solomonson
  • Patent number: 10288254
    Abstract: This application describes a front-lit reflective display assembly including a reflective display and an illumination article for front-lighting the display when the article is optically coupled to a light source. The illumination article includes a variable index light extraction layer optically coupled to a lightguide. The variable index light extraction layer has first and second regions, the first region comprising nanovoided polymeric material, the second region comprising the nanovoided polymeric material and an additional material, the first and second regions being disposed such that for light being transported at a supercritical angle in the lightguide, the variable index light extraction layer selectively extracts the light in a predetermined way based on the geometric arrangement of the first and second regions. Front-lit reflective display devices including the front-lit reflective display assembly optically coupled to a light source are also described.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: May 14, 2019
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Kevin R. Schaffer, David Scott Thompson, Zhaohui Yang, Encai Hao, Audrey A. Sherman, Michael A. Meis, William J. Bryan, John A. Wheatley, Joseph W. Woody, Steven D. Solomonson, Matthew S. Stay, Mikhail L. Pekurovsky
  • Patent number: 5039039
    Abstract: Presented is a generally L-shaped pre-manufactured bracket designed for application to installed hanger rods in concrete buildings to provide a means of installing and supporting a cross-beam which, in turn, is utilized to support additional equipment, such as electrical conduits and pipes.
    Type: Grant
    Filed: January 4, 1990
    Date of Patent: August 13, 1991
    Inventor: Michael D. Schaffer