Patents by Inventor Charles D. Dukes

Charles D. Dukes 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).

  • SURGICAL ACCESS DEVICES AND METHODS PROVIDING SEAL MOVEMENT IN PREDEFINED MOVEMENT REGIONS
    Publication number: 20240081802
    Abstract: Various methods and devices are provided for allowing multiple surgical instruments to be inserted into sealing elements of a single surgical access device. The sealing elements can be movable along predefined pathways within the device to allow surgical instruments inserted through the sealing elements to be moved laterally, rotationally, angularly, and vertically relative to a central longitudinal axis of the device for ease of manipulation within a patient's body while maintaining insufflation.
    Type: Application
    Filed: November 16, 2023
    Publication date: March 14, 2024
    Inventors: Mark S. Ortiz, David T. Martin, Matthew C. Miller, Mark J. Reese, Wells D. Haberstich, Carl Shurtleff, Charles J. Scheib, Frederick E. Shelton, IV, Jerome R. Morgan, Daniel H. Duke, Daniel J. Mumaw, Gregory W. Johnson, Kevin L. Houser
  • Compositions and method of inhibiting polymerization of vinyl-aryl monomers
    Patent number: 8969498
    Abstract: The invention generally relates to a method of inhibiting polymerization of vinyl aryl monomers, a process for increasing number average molecular weight of a polystyrene, and to an inhibitor composition useful therein.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: March 3, 2015
    Assignees: Dow Global Technologies LLC, Carnegie Mellon University
    Inventors: Nathan T. Kendall, Kishore K. Kar, Mark H. McAdon, Krzysztof Matyjaszewski, Laura Mueller, Charles D. Dukes
  • COMPOSITIONS AND METHOD OF INHIBITING POLYMERIZATION OF VINYL-ARYL MONOMERS
    Publication number: 20130158203
    Abstract: The invention generally relates to a method of inhibiting polymerization of vinyl aryl monomers, a process for increasing number average molecular weight of a polystyrene, and to an inhibitor composition useful therein.
    Type: Application
    Filed: July 27, 2011
    Publication date: June 20, 2013
    Applicants: CARNEGIE MELLON UNIVERSITY, DOW GLOBAL TECHNOLOGIES INC.
    Inventors: Nathan T. Kendall, Kishore K. Kar, Mark H. McAdon, Krzysztof Matyjaszewski, Laura Mueller, Charles D. Dukes
  • Binding superabsorbent polymers to substrates
    Patent number: 6586512
    Abstract: A composition comprising a superabsorbent polymer and a hydroxy-functionalized polyether.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: July 1, 2003
    Assignee: The Dow Chemical Company
    Inventors: Charles D. Dukes, Donna G. Shaffer
  • Combinations of fibers and thermoplastic epoxy derivatives
    Publication number: 20020009937
    Abstract: A composition comprising at least one fiber and a binding amount of a hydroxy-functionalized polyether or polyester and a dispersion comprising a hydroxy-functionalized polyether or polyester.
    Type: Application
    Filed: February 9, 2001
    Publication date: January 24, 2002
    Inventors: Charles D. Dukes, Donna G. Shaffer, Guang-Ming Xia, John M. Beckerdite