Patents by Inventor Stephen A. Petersen

Stephen A. Petersen 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).

  • Docking station and associated method for docking a portable printer
    Patent number: 7306386
    Abstract: According to one embodiment, a docking station and an associated method for docking a portable printer are provided. The portable printer has a printhead, media drive, and media support externally configured to be latched onto the docking station, and the docking station is adapted for convenient one-hand docking and undocking of the portable printer. The docking station includes a base member having a first surface configured to receive the portable printer, and a latching mechanism including a manually operable actuator and coupled thereto one or more latches adapted to automatically engage and securely dock the portable printer on the first surface of the base member when the printer is positioned on the first surface. The actuator is capable of actuating the latch to unlatch a latched printer and to bias the printer outwardly for removal of the printer from the station.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: December 11, 2007
    Assignee: ZIH Corp.
    Inventors: Roy Patrick Lyman, Gregory Paul Panebianco, Stephen A. Petersen
  • Mechanical heart valve prosthesis
    Patent number: 6395025
    Abstract: Mechanical heart valve prostheses are disclosed that inherently reduce the probability of thrombus formation by minimizing blood flow disturbance, high shear stress, and stagnation. The pivot configuration includes a recess, preferably in the housing, that has a profile which promotes smooth blood flow.
    Type: Grant
    Filed: December 31, 1998
    Date of Patent: May 28, 2002
    Assignee: St. Jude Medical, Inc.
    Inventors: Paul J. Fordenbacher, Avrom M. Brendzel, A. Tanya Shipkowitz, Stephen A. Petersen
  • Leaflet positioning for a mechanical heart valve
    Patent number: 6176876
    Abstract: A bi-leaflet prosthetic heart valve, comprising an annular body having an upstream edge, a downstream edge and a passageway therebetween includes first and second leaflets pivotally mounted in the annular body. Each leaflet has an upstream edge, a downstream edge and a leaflet length therebetween. First and second pivot axes associated respectively with the first and second leaflets are provided and each leaflet rotates about its respective pivot axes between an open position allowing blood flow through the passageway of the annular body and a closed position blocking blood flow. The valve is configured such that the leaflets have an angle in the naturally open position of more than about 85°.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: January 23, 2001
    Assignee: St. Jude Medical, Inc.
    Inventors: Tanya Shipkowitz, Paul J. Fordenbacher, Yi-Ren Woo, Michael J. Girard, Stephen A. Petersen
  • Holder for heart valve prosthesis
    Patent number: 5814101
    Abstract: A holder for engaging a heart valve prosthesis during implantation includes a holder body and stem. The stem is adapted to receive a handle used to manipulate the prostheses during implantation. The stem is moveable between a standard implantation position and a low profile delivery position.
    Type: Grant
    Filed: September 25, 1996
    Date of Patent: September 29, 1998
    Assignee: St. Jude Medical, Inc.
    Inventors: Margaret A. Wallner, David R. Elizondo, Kimberly A. Anderson, Guy P. Vanney, Kurt D. Krueger, Michael J. Girard, Stephen A. Petersen, Darrin J. Bergman, Terry L. Shepherd