Patents by Inventor John D. Allendorf

John D. Allendorf 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).

  • Endoscopic gastric bypass
    Patent number: 7837645
    Abstract: An endoscopic device separates ingested food from gastric fluids or gastric fluids and digestive enzymes, to treat obesity. In a particular embodiment a gastric bypass stent comprises a tubular member and two or more stent members defining a lumen. The tubular member has a substantially liquid impervious coating or covering and one or more lateral openings to permit one-way liquid flow.
    Type: Grant
    Filed: March 5, 2007
    Date of Patent: November 23, 2010
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Marc Bessler, John D. Allendorf
  • Endoscopic gastric bypass
    Patent number: 7211114
    Abstract: An endoscopic device separates ingested food from gastric fluids or gastric fluids and digestive enzymes, to treat obesity. In a particular embodiment a gastric bypass stent comprises a tubular member and two or more stent members defining a lumen. The tubular member has a substantially liquid impervious coating or covering and one or more lateral openings to permit one-way liquid flow.
    Type: Grant
    Filed: August 26, 2002
    Date of Patent: May 1, 2007
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Marc Bessler, John D. Allendorf