Patents by Inventor LeRoy J. Lundblad

LeRoy J. Lundblad 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).

  • Method and apparatus for etching-manufacture of cylindrical elements
    Publication number: 20040026359
    Abstract: A process is described for the manufacture of flexible tubular elements, particularly stents for the medical field, the process comprising the steps of:
    Type: Application
    Filed: March 3, 2003
    Publication date: February 12, 2004
    Inventors: Michael J. Dufresne, LeRoy J. Lundblad
  • Method and apparatus for etching-manufacture of cylindrical elements
    Patent number: 6537459
    Abstract: A process is described for the manufacture of flexible tubular elements, particularly stents for the medical field, the process comprising the steps of: a) providing a hollow metal tube (or metal coated tube) with an open pattern of a chemical-etch-resistant coating layer; b) supporting the hollow metal tube with a coating thereon onto a chemical etch resistant support element; c) contacting the open pattern with a solution capable of etching the metal of the hollow metal tube so that said metal is etched away from physically exposed surfaces of the metal tube and openings in the metal tube corresponding to the open pattern of the coating layer are created in the metal tube element without etching the chemical etch resistant support element; and d) removing the metal tube from the chemical etch resistant support element.
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: March 25, 2003
    Assignee: BMC Industries, Inc.
    Inventors: Michael J. Dufresne, LeRoy J. Lundblad
  • Method and apparatus for etching-manufacture of cylindrical elements
    Patent number: 6086773
    Abstract: A process is described for the manufacture of flexible tubular elements, particularly stents for the medical field, the process comprising the steps of:a) providing a hollow metal tube (or metal coated tube) with an open pattern of a chemical-etch-resistant coating layer;b) supporting the hollow metal tube with a coating thereon onto a chemical etch resistant support element;c) contacting the open pattern with a solution capable of etching the metal of the hollow metal tube so that said metal is etched away from physically exposed surfaces of the metal tube and openings in the metal tube corresponding to the open pattern of the coating layer are created in the metal tube element without etching the chemical etch resistant support element; andd) removing the metal tube from the chemical etch resistant support element.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: July 11, 2000
    Assignee: BMC Industries, Inc.
    Inventors: Michael J. Dufresne, LeRoy J. Lundblad