Patents by Inventor William Frederick Weitzel

William Frederick Weitzel 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).

  • Extracorporeal fluid circuit and related methods
    Patent number: 6913588
    Abstract: A circuit for extracorporeal treatment of a body fluid, the circuit including in serial fluidic communication an inlet for receiving the body fluid from a patient, a first pump, a first treatment device for processing the body fluid, a second pump, an outlet for returning processed body fluid to the patient; and a shunt. The shunt is upstream from the first pump and downstream from the second pump.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: July 5, 2005
    Assignees: Nephros Therapeutics, Inc., The Regents of the University of Michigan
    Inventors: William Frederick Weitzel, H. David Humes, Emil Presley Paganini, Deborah Ann Buffington, Angela J. Funke
  • Extracorporeal fluid circuit and related methods
    Publication number: 20040024342
    Abstract: A circuit for extracorporeal treatment of a body fluid, the circuit including in serial fluidic communication an inlet for receiving the body fluid from a patient, a first pump, a first treatment device for processing the body fluid, a second pump, an outlet for returning processed body fluid to the patient; and a shunt. The shunt is upstream from the first pump and downstream from the second pump.
    Type: Application
    Filed: March 28, 2003
    Publication date: February 5, 2004
    Inventors: William Frederick Weitzel, H. David Humes, Emil Presley Paganini, Deborah Ann Buffington, Angela J. Funke
  • Extracorporeal fluid circuit and related methods
    Patent number: 6561997
    Abstract: A circuit for extracorporeal treatment of a body fluid, the circuit including in serial fluidic communication an inlet for receiving the body fluid from a patient, a first pump, a first treatment device for processing the body fluid, a second pump, an outlet for returning processed body fluid to the patient; and a shunt. The shunt is upstream from the first pump and downstream from the second pump.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: May 13, 2003
    Assignees: The Regents of the University of Michigan, Nephros Therapeutics, Inc.
    Inventors: William Frederick Weitzel, H. David Humes, Emil Presley Paganini, Deborah Ann Buffington, Angela J. Funke