Patents by Inventor Steven Zawadzki

Steven Zawadzki 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).

  • Hip stem prosthesis
    Patent number: 10426623
    Abstract: A hip stem prosthesis is provided for treating a deficient hip joint.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: October 1, 2019
    Assignee: Zimmer, Inc.
    Inventors: Natalia Fridshtand, Douglas W. Gabel, Steven Charlebois, David L. Glass, Steven Zawadzki, Jeffrey P. Matney
  • HIP STEM PROSTHESIS
    Publication number: 20170209276
    Abstract: A hip stem prosthesis is provided for treating a deficient hip joint.
    Type: Application
    Filed: April 7, 2017
    Publication date: July 27, 2017
    Inventors: Natalia Fridshtand, Douglas W. Gabel, Steven Charlebois, David L. Glass, Steven Zawadzki, Jeffrey P. Matney
  • Method for attaching a porous metal layer to a metal substrate
    Patent number: 9656358
    Abstract: A method for attaching a porous metal layer to a dense metal substrate, wherein the method is particularly useful in forming orthopedic implants such as femoral knee components, femoral hip components, and/or acetabular cups. The method, in one embodiment thereof, comprises providing a solid metal substrate; providing a porous metal structure; contouring a surface of the porous metal structure; placing the porous structure against the substrate such that the contoured surface of the porous metal structure is disposed against the substrate, thereby forming an assembly; applying heat and pressure to the assembly in conjunction with thermal expansion of the substrate in order to metallurgically bond the porous structure and the substrate; and removing mass from the substrate after the porous structure is bonded to the substrate, thereby finish processing the assembly.
    Type: Grant
    Filed: April 15, 2013
    Date of Patent: May 23, 2017
    Assignee: Zimmer, Inc.
    Inventors: Steven Charlebois, Leslie N. Gilbertson, Michael E Hawkins, Dana Medlin, H. Ravindranath Shetty, Steven Zawadzki
  • Hip stem prosthesis
    Patent number: 9636227
    Abstract: A hip stem prosthesis is provided for treating a deficient hip joint.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: May 2, 2017
    Assignee: Zimmer, Inc.
    Inventors: Natalia Fridshtand, Douglas W. Gabel, Steven Charlebois, David L. Glass, Steven Zawadzki, Jeffrey P. Matney
  • HIP STEM PROSTHESIS
    Publication number: 20150025649
    Abstract: A hip stem prosthesis is provided for treating a deficient hip joint.
    Type: Application
    Filed: October 9, 2014
    Publication date: January 22, 2015
    Inventors: Natalia Fridshtand, Douglas W. Gabel, Steven Charlebois, David L. Glass, Steven Zawadzki, Jeffrey P. Matney
  • HIP STEM PROSTHESIS
    Publication number: 20120221116
    Abstract: A hip prosthesis is provided for insertion into a femur. In one exemplary embodiment, the hip prosthesis includes a stem having a proximal end, a distal end, and a longitudinal axis. This stem may include anterior and posterior locking surfaces which diverge away from the longitudinal axis. A shank portion may extend distally from the anterior and posterior locking surfaces and converge at an angle distally toward the longitudinal axis.
    Type: Application
    Filed: May 7, 2012
    Publication date: August 30, 2012
    Applicant: ZIMMER, INC.
    Inventors: Natalia Fridshtand, Douglas W. Gabel, Steven J. Charlebois, David L. Glass, Steven Zawadzki, Jeffrey P. Matney
  • HIP STEM PROSTHESIS
    Publication number: 20110009977
    Abstract: A hip prosthesis is provided for insertion into a femur. In one exemplary embodiment, the hip prosthesis includes a stem having a proximal end, a distal end, and a longitudinal axis. This stem may include anterior and posterior locking surfaces which diverge away from the longitudinal axis. A shank portion may extend distally from the anterior and posterior locking surfaces and converge at an angle distally toward the longitudinal axis.
    Type: Application
    Filed: September 13, 2010
    Publication date: January 13, 2011
    Applicant: ZIMMER, INC.
    Inventors: Natalia Fridshtand, Douglas W. Gabel, Steven J. Charlebois, David L. Glass, Steven Zawadzki, Jeffrey P. Matney
  • Hip stem prosthesis
    Patent number: 7842096
    Abstract: A hip prosthesis for insertion into a femur. In one exemplary embodiment, the hip prosthesis includes a stem having a proximal end, a distal end, and a longitudinal axis. This stem may include anterior and posterior locking surfaces which diverge away from the stem. A shank portion may extend distally from the anterior and posterior locking surfaces and converge at an angle distally toward the stem.
    Type: Grant
    Filed: February 22, 2005
    Date of Patent: November 30, 2010
    Assignee: Zimmer Technology, Inc.
    Inventors: Natalia Fridshtand, Douglas W. Gabel, Steven J. Charlebois, David L. Glass, Steven Zawadzki, Jeffrey P. Matney
  • Hip stem prosthesis
    Publication number: 20060190092
    Abstract: A hip stem prosthesis is provided for treating a deficient hip joint.
    Type: Application
    Filed: February 22, 2005
    Publication date: August 24, 2006
    Inventors: Natalia Fridshtand, Douglas Gabel, Steven Charlebois, David Glass, Steven Zawadzki, Jeffrey Matney
  • Method for attaching a porous metal layer to a metal substrate
    Publication number: 20050184134
    Abstract: A method for attaching a porous metal layer to a dense metal substrate, wherein the method is particularly useful in forming orthopedic implants such as femoral knee components, femoral hip components, and/or acetabular cups. The method, in one embodiment thereof, comprises providing a solid metal substrate; providing a porous metal structure; contouring a surface of the porous metal structure; placing the porous structure against the substrate such that the contoured surface of the porous metal structure is disposed against the substrate, thereby forming an assembly; applying heat and pressure to the assembly in conjunction with thermal expansion of the substrate in order to metallurgically bond the porous structure and the substrate; and removing mass from the substrate after the porous structure is bonded to the substrate, thereby finish processing the assembly.
    Type: Application
    Filed: April 18, 2005
    Publication date: August 25, 2005
    Inventors: Steven Charlebois, Leslie Gilbertson, Michael Hawkins, Dana Medlin, H. Shetty, Steven Zawadzki