Patents by Inventor Michael R. Fisch

Michael R. Fisch 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).

  • Weapon and tool head and method
    Patent number: 11747118
    Abstract: The invention is directed to a weapon or tool head that has an appearance that mimics chipped stone weapon- or tool heads used in prehistory and history. The weapon or tool head has an outer body portion having the desired “ancient” appearance and a hard insert is provided with at least one sharp edge exposed for use, the latter providing modern performance characteristics to the weapon or tool.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: September 5, 2023
    Assignee: KENT STATE UNIVERSITY
    Inventors: Metin I. Eren, Michelle R. Bebber, Michael R. Fisch, Michael Kavulic, Trent A. W. True
  • WEAPON AND TOOL HEAD AND METHOD
    Publication number: 20220146241
    Abstract: The invention is directed to a weapon or tool head that has an appearance that mimics chipped stone weapon- or tool heads used in prehistory and history. The weapon or tool head has an outer body portion having the desired “ancient” appearance and a hard insert is provided with at least one sharp edge exposed for use, the latter providing modern performance characteristics to the weapon or tool.
    Type: Application
    Filed: November 11, 2021
    Publication date: May 12, 2022
    Inventors: Metin I. Eren, Michelle R. Bebber, Michael R. Fisch, Michael Kavulic, Trent A. W. True
  • Cholesteric liquid crystal devices
    Patent number: 5602662
    Abstract: A liquid crystal cell including chiral nematic liquid material with negative dielectric anisotropy. The cell is placed between two orthogonal polarizers. In the absence of an applied field, the liquid crystal molecules assume a homeotropic alignment. The liquid crystal molecules assume a twisted pattern in the field-on state.
    Type: Grant
    Filed: February 16, 1995
    Date of Patent: February 11, 1997
    Assignee: Case Western Reserve University
    Inventors: Charles Rosenblatt, Michael R. Fisch, Karl A. Crandall, Rolfe Petschek
  • Chiral nematic liquid crystal display with homeotropic alignment and negative dielectric anisotropy
    Patent number: 5477358
    Abstract: A liquid crystal cell including chiral nematic liquid material with negative dielectric anisotropy. The cell is placed between two orthogonal polarizers. In the absence of an applied field, the liquid crystal molecules assume a homeotropic alignment. The liquid crystal molecules assume a twisted pattern in the field-on state.
    Type: Grant
    Filed: June 21, 1993
    Date of Patent: December 19, 1995
    Assignee: Case Western Reserve University
    Inventors: Charles Rosenblatt, Michael R. Fisch, Karl A. Crandall, Rolfe Petschek