Patents by Inventor Michael J. Hejna

Michael J. Hejna 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).

  • Tissue engineered osteochondral implant
    Patent number: 7931687
    Abstract: Compositions, methods of production and use, and kits for an osteochondral graft involving both articular cartilage and underlying bone are provided.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: April 26, 2011
    Assignees: Articular Engineering, LLC, Rush University Medical Center
    Inventors: Koichi Masuda, Michael J. Hejna, Brian E. Pfister
  • Tissue engineered osteochondral implant
    Publication number: 20030229400
    Abstract: Compositions, methods of production and use, and kits for an osteochondral graft involving both articular cartilage and underlying bone are provided.
    Type: Application
    Filed: May 12, 2003
    Publication date: December 11, 2003
    Inventors: Koichi Masuda, Michael J. Hejna, Brian E. Pfister