Patents by Inventor Stephen Petersen

Stephen 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).

  • Patent number: 11990050
    Abstract: A vertiport system dynamically updates configuration of a vertiport based on predicted usage of the vertiport during a given time frame. The vertiport system predicts vertiport usage using flight data and estimated passenger demands and determines a desired number of parking pads and a desired number of final approach and takeoff (FATO) pads for the vertiport during the time frame. Based on the desired number of parking pads and the desired number of FATO pads for the vertiport, the vertiport system determines an updated configuration of the vertiport. According to the updated configuration, the vertiport system updates the configuration of the vertiport for at least a portion of the time frame.
    Type: Grant
    Filed: May 22, 2023
    Date of Patent: May 21, 2024
    Assignee: JOBY AERO, INC.
    Inventors: Jon David Petersen, Rex J. Alexander, Stanley Stephen Swaintek, III
  • Publication number: 20240084181
    Abstract: A refrigerant composition includes R1225ye(E) refrigerant, a second refrigerant that is one of R1234ze(E) refrigerant and R32 refrigerant, and a third refrigerant that is one of R227ea refrigerant, R125 refrigerant, and R1234yf refrigerant. The refrigerant composition has a GWP of at or less than about 2000. A method of making a refrigerant composition includes mixing at least an amount of R1225ye(E) refrigerant, an amount of a second refrigerant, and an amount of a third refrigerant to obtain a refrigerant composition that has a GWP of at or about or less than 2000. A method of retrofitting a refrigerant composition in an HVACR system includes adding an amount of at least one refrigerant to a refrigerant composition to produce a retrofit refrigerant composition that includes R1225ye(E) refrigerant, a second refrigerant, and a third refrigerant.
    Type: Application
    Filed: September 12, 2022
    Publication date: March 14, 2024
    Inventors: Michael Petersen, Stephen A. Kujak, Kenneth J. Schultz
  • 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
  • Patent number: 7287191
    Abstract: A method, apparatus, and article of manufacture for measuring a mean time between program failures by maintaining a running count of program crashes per user per product version on a customer computer, and transmitting this information to a server computer when customers send error reports.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: October 23, 2007
    Assignee: Autodesk, Inc.
    Inventors: Ashok Kumar Gadangi, Joel Stephen Petersen
  • Publication number: 20060024114
    Abstract: A printer assembly for dispensing a printer media and printing on the printer media as it is dispensed. The printer assembly includes a housing with a container portion and a lid portion, and a latching mechanism configured to coordinate latching, unlatching and biasing of the lid with locking and unlocking of the printer media supply from a media supply assembly. The latching mechanism may be configured to urge the lid portion away from the container portion when the lid portion is unlatched. The latching mechanism can include a locking surface that is configured to engage a locking surface on relatively movable media support members, restraining relative movement of the media support members and locking down the media supply therein when the latching the lid portion closed. The locking surface is positioned external to opposing, relatively movable surfaces of the media support members enabling a compact assembly for hand held printers.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 2, 2006
    Inventors: Roy Lyman, Stephen Petersen, Richard Preliasco
  • Publication number: 20060024107
    Abstract: The present invention provides a docking station and an associated method for docking a portable printer. 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 upwardly for removal of the printer from the station.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 2, 2006
    Inventors: Roy Lyman, Gregory Panebianco, Stephen Petersen
  • 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
  • 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
  • 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