Patents by Inventor Don W. Lee

Don W. Lee 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: 10588387
    Abstract: A walking cane with enhanced security features designed for use by a user to facilitate walking on a ground surface is provided. The walking cane includes a housing having a tubular member with a front face, a rear face and a pair of side faces, a handle coupled to the rear face of the housing, and a camera disposed within the internal cavity of the housing and having a lens that protrudes out the front face of the tubular member. The handle is grasped by the user to facilitate walking on the ground surface while the camera activates to simultaneously generate video of the surrounding area of the cane for a later retrieval.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: March 17, 2020
    Inventors: Don W Lee, Sung Lee Fortney
  • Patent number: 6997943
    Abstract: A method and apparatus for introducing a stent into a region of a major blood vessel within the human body in a manner which substantially reduces the risk of embolic material escaping to the vessel and causing a blockage at a downstream location. A uniquely designed stent delivery catheter includes a central lumen through which a guide wire travels. The central lumen is provided with a valve means that is operable by the guide wire and when moved into a closed position by withdrawal of the guide wire, functions to prevent the flow of loose debris toward the proximal end of the catheter.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: February 14, 2006
    Inventors: Don W. Lee, Chung H. Lee
  • Patent number: 6981984
    Abstract: A method and apparatus for introducing a stent into a region of a major blood vessel within the human body in a manner which substantially reduces the risk of embolic material escaping to the vessel and causing a blockage at a downstream location. A uniquely designed stent delivery catheter includes a central lumen through which a guide wire travels. The central lumen is provided with a valve means that is operable by the guide wire and when moved into a closed position by withdrawal of the guide wire, functions to prevent the flow of loose debris toward the proximal end of the catheter.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: January 3, 2006
    Inventor: Don W. Lee
  • Patent number: 6972030
    Abstract: A method and apparatus for introducing a stent into a region of a major blood vessel within the human body in a manner which substantially reduces the risk of embolic material escaping to the vessel and causing a blockage at a downstream location. Additionally, the apparatus includes a uniquely designed stent delivery catheter having a central lumen through which a guide wire travels, the central lumen being provided with a valve means that is operable by the guide wire and when moved into a closed position by withdrawal of the guide wire, functions to prevent the flow of loose debris toward the proximal end of the catheter.
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: December 6, 2005
    Inventors: Don W. Lee, Chung H. Lee
  • Publication number: 20040093059
    Abstract: A method and apparatus for introducing a stent into a region of a major blood vessel within the human body in a manner which substantially reduces the risk of embolic material escaping to the vessel and causing a blockage at a downstream location. Additionally, the apparatus of the invention includes a uniquely designed stent delivery catheter having a central lumen through which a guide wire travels, the central lumen being provided with a valve means that is operable by the guide wire and when moved into a closed position by withdrawal of the guide wire, functions to prevent the flow of loose debris toward the proximal end of the catheter.
    Type: Application
    Filed: February 19, 2003
    Publication date: May 13, 2004
    Inventors: Don W. Lee, Chung H. Lee
  • Publication number: 20040054395
    Abstract: A method and apparatus for introducing a stent into a region of a major blood vessel within the human body in a manner which substantially reduces the risk of embolic material escaping to the vessel and causing a blockage at a downstream location. Additionally, the apparatus of the invention includes a uniquely designed stent delivery catheter having a central lumen through which a guide wire travels, the central lumen being provided with a valve means that is operable by the guide wire and when moved into a closed position by withdrawal of the guide wire, functions to prevent the flow of loose debris toward the proximal end of the catheter.
    Type: Application
    Filed: December 13, 2002
    Publication date: March 18, 2004
    Inventors: Don W. Lee, Chung H. Lee
  • Patent number: 5378041
    Abstract: A wheelchair construction which includes both removable patient foot supports and an outwardly extending patient leg support which can function to support the patient's legs in an upraised position when the foot supports have been removed.The wheelchair construction also includes an easily removable inclined back support assembly having connector elements which are telescopically receivable within upstanding tubular rear members of the wheelchair mainframe for supporting the patient in a more comfortable reclined position. The leg support and inclined back support assemblies permit the wheelchair patient to shift positions and achieve a greater degree of comfort than is provided by the standard wheelchair back and foot supports.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: January 3, 1995
    Inventor: Don W. Lee
  • Patent number: D531052
    Type: Grant
    Filed: June 11, 2005
    Date of Patent: October 31, 2006
    Inventor: Don W. Lee