Patents by Inventor Keith A. Walters

Keith A. Walters 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: 20220240697
    Abstract: A drinking container includes: a base; a sidewall extending upwardly from the base, wherein the base and the sidewall define a cavity; and an ice retaining structure in the cavity, the ice retaining structure including a shield member held adjacent an adjacent portion of an inner surface of the sidewall, wherein the shield is connected to and/or abuts the sidewall at two spaced apart connection locations. The ice retaining structure and the sidewall define a single laterally extending gap therebetween, and the ice retaining structure is positioned and configured to retain ice in the cavity and to permit liquid to pass through the gap when the drinking container is tilted relative to vertical.
    Type: Application
    Filed: February 2, 2022
    Publication date: August 4, 2022
    Inventor: Keith A. Walter
  • Publication number: 20200003002
    Abstract: A security device for a window frame includes: a base which is generally L-shaped in cross section with horizontal and vertical legs, wherein at least one of the legs of the base includes a base snap connector; and a cover which is generally L-shaped in cross section with horizontal and vertical legs, wherein at least one of the legs of the cover includes a cover snap connector configured to engage the base snap connector.
    Type: Application
    Filed: June 28, 2019
    Publication date: January 2, 2020
    Inventor: Keith A. Walter
  • Patent number: 9707256
    Abstract: Provided herein is an endothelial scaffold comprising, consisting of, or consisting essentially of decellularized corneal stroma. In some embodiments, the scaffold has cultured endothelial cells seeded thereon. Methods of treating a patient in need of corneal endothelial transplant are also provided, including implanting the scaffold as described herein onto a cornea of the patient (e.g., by deep keratectomy).
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: July 18, 2017
    Assignee: Wake Forest Institute for Regenerative Medicine
    Inventors: Shay Soker, J. Koudy Williams, Patrick Laber, Margaret Greven, Keith A. Walter
  • Publication number: 20140099290
    Abstract: Provided herein is an endothelial scaffold comprising, consisting of, or consisting essentially of decellularized corneal stroma. In some embodiments, the scaffold has cultured endothelial cells seeded thereon. Methods of treating a patient in need of corneal endothelial transplant are also provided, including implanting the scaffold as described herein onto a cornea of the patient (e.g., by deep keratectomy).
    Type: Application
    Filed: December 11, 2013
    Publication date: April 10, 2014
    Applicant: Wake Forest University Health Sciences
    Inventors: Shay Soker, J. Koudy Williams, Patrick Laber, Margaret Greven, Keith A. Walter
  • Patent number: 8628572
    Abstract: Provided herein is an endothelial scaffold comprising, consisting of, or consisting essentially of decellularized corneal stroma. In some embodiments, the scaffold has cultured endothelial cells seeded thereon. Methods of treating a patient in need of corneal endothelial transplant are also provided, including implanting the scaffold as described herein onto a cornea of the patient (e.g., by deep keratectomy).
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: January 14, 2014
    Assignee: Wake Forest University Health Sciences
    Inventors: Shay Soker, J. Koudy Williams, Patrick Laber, Margaret Greven, Keith A. Walter
  • Publication number: 20100215717
    Abstract: Provided herein is an endothelial scaffold comprising, consisting of, or consisting essentially of decellularized corneal stroma. In some embodiments, the scaffold has cultured endothelial cells seeded thereon. Methods of treating a patient in need of corneal endothelial transplant are also provided, including implanting the scaffold as described herein onto a cornea of the patient (e.g., by deep keratectomy).
    Type: Application
    Filed: February 25, 2010
    Publication date: August 26, 2010
    Inventors: Shay Soker, J. Koudy Williams, Patrick Laber, Margaret Greven, Keith A. Walter
  • Patent number: 7459900
    Abstract: A modular current sensing system for a servo control system that includes a magnetic core with an open center portion and a connection plate that includes at least three wire connectors, wherein the wire connectors are capable of connecting at least two wires electrically in series. The system also includes a plurality of wires, including a first wire with a first end and a second end, wherein the first end of the first wire is electrically connected to a first power source, and the second end of the first wire is connected to the connection plate at the first wire connector and wherein the first wire passes through the open portion defined by the magnetic core at least once. A first motor current flowing through the first wire induces a core current to flow in the magnetic core, causing the magnetic core to emit a magnetic field. A Hall effect sensor detects the magnetic field, produces an output current, and delivers the output current to a control device within a servo control system.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: December 2, 2008
    Assignee: BAE Systems Land & Armaments L.P.
    Inventors: Timothy M. Grupa, Lane L. Woodland, Stephen M. Stocker, Martin J. Sukup, Bret C. Bartness, David J. Badzinski, Jeffrey W. Shoemaker, Keith A. Walters
  • Patent number: 7459872
    Abstract: The present invention relates to an apparatus and method for generating digital electrical signals which are representative of the angular position and rotational velocity of a rotatable shaft or similar movable mechanical component in a servomechanism. In particular, the present invention utilizes oversampling techniques to create an accurate, flexible and responsive method for determining shaft position on a high speed motor. The present invention also includes methods for overcoming deadtime losses and velocity lag.
    Type: Grant
    Filed: February 5, 2007
    Date of Patent: December 2, 2008
    Assignee: BAE Systems Land & Armaments L.P.
    Inventors: Lane L. Woodland, Stephen M. Stocker, David J. Badzinski, Jeffrey W. Shoemaker, Keith A. Walters