Patents by Inventor George S. Springer

George S. Springer 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).

  • Expandable space frame
    Patent number: 6699279
    Abstract: An expandable space frame is manufactured by linking a plurality of flexible joints through spacing arms to form a closed structure. The spacing arms are sterically offset, linking the bottom of one joint to the top of the next joint in an stepwise fashion. The offset allows the frame to be collapsed with minimal steric hindrance between the centered joints. This lack of steric hindrance permits a very high ratio of the expansion to compression diameters for the frame. The space frame forms the basis for different types of stents. A spiral frame, or a series of individual frames are linked to each other to form a luminal stent, or are linked to longitudinal struts to form the support structure for a stent. The stents formed from the expandable space frame can be designed to have a number of additional features as set forth herein.
    Type: Grant
    Filed: May 15, 2002
    Date of Patent: March 2, 2004
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Walter J. Stevens, George S. Springer
  • Expandable space frame
    Patent number: 6497724
    Abstract: An expandable space frame is manufactured by linking a plurality of flexible joints through spacing arms to form a closed structure. The spacing arms are sterically offset, linking the bottom of one joint to the top of the next joint in an stepwise fashion. The offset allows the frame to be collapsed with minimal steric hindrance between the centered joints. This lack of steric hindrance permits a very high ratio of the expansion to compression diameters for the frame. The space frame forms the basis for different types of stents. A spiral frame, or a series of individual frames are linked to each other to form a luminal stent, or are linked to longitudinal struts to form the support structure for a stent. The stents formed from the expandable space frame can be designed to have a number of additional features as set forth herein.
    Type: Grant
    Filed: October 27, 2000
    Date of Patent: December 24, 2002
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Walter J. Stevens, George S. Springer
  • Expandable space frame
    Publication number: 20020183833
    Abstract: An expandable space frame is manufactured by linking a plurality of flexible joints through spacing arms to form a closed structure. The spacing arms are sterically offset, linking the bottom of one joint to the top of the next joint in an stepwise fashion. The offset allows the frame to be collapsed with minimal steric hindrance between the centered joints. This lack of steric hindrance permits a very high ratio of the expansion to compression diameters for the frame. The space frame forms the basis for different types of stents. A spiral frame, or a series of individual frames are linked to each other to form a luminal stent, or are linked to longitudinal struts to form the support structure for a stent. The stents formed from the expandable space frame can be designed to have a number of additional features as set forth herein.
    Type: Application
    Filed: May 15, 2002
    Publication date: December 5, 2002
    Inventors: Walter J. Stevens, George S. Springer