Patents by Inventor Juan Madrigal

Juan Madrigal 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).

  • Devices and methods for gastrointestinal bypass
    Patent number: 8956318
    Abstract: Devices and methods for gastrointestinal bypass are described. A gastrointestinal bypass device includes a gastrointestinal cuff and a gastrointestinal sleeve. The cuff may be configured to be attached in the esophagus, and may be sufficiently flexible to expand and collapse to conform with the inside of the esophagus to allow the esophagus to function substantially normally. The sleeve is configured to be coupled to the cuff, and may be made of a material that is floppy or flaccid but does not substantially expand radially.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: February 17, 2015
    Assignee: ValenTx, Inc.
    Inventors: Sean Miller, Cole Chen, Juan Madrigal, Johann Neisz, Josiah Verkaik
  • Antimicrobial indwelling voice prosthesis
    Publication number: 20050171602
    Abstract: A voice prosthesis comprising a tubular body portion, a valve and a valve seat disposed within the body portion. The valve seat is further comprised of a medical grade elastomer containing a dispersion of an antimicrobial agent. This valve seat extends the life of the prosthesis by retarding the growth of microorganisms. The body portion of the prosthesis may also contain an antimicrobial agent at a concentration that is non-toxic to the tissue it contacts.
    Type: Application
    Filed: March 29, 2005
    Publication date: August 4, 2005
    Inventors: Jeffrey Goldberg, Edmund Seder, Jesse Nelson, Juan Madrigal