Patents by Inventor James L. Tiefenthal

James L. Tiefenthal 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).

  • Patent number: 6506179
    Abstract: A retention member and a feeding tube having a feeding lumen and an inflation lumen. The retention member including a sleeve section, an expandable section, and a shoulder section of decreasing wall thickness therebetween. The sleeve section sealingly engages the feeding tube distal end and the expandable section everts about the shoulder section to sealingly engage the feeding tube and define an expandable lumen in communication with the inflation lumen.
    Type: Grant
    Filed: October 12, 2001
    Date of Patent: January 14, 2003
    Assignee: Abbott Laboratories
    Inventors: James L. Tiefenthal, George C. Proicou
  • Patent number: 5325873
    Abstract: A system for detecting the position of an object within a body of biological tissue includes a resonant circuit attached to the object and a probe including a receiver/transmitter that operates at the resonant frequency of the object. The resonant circuit rings in response to pulses transmitted from the probe thereby activating receiver circuits which control a visual display indicating the direction the probe should be moved to center it over the object. When the object is centered a second visual display provides confirmation.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: July 5, 1994
    Assignees: Abbott Laboratories, White's Electronics, Inc.
    Inventors: Richard E. Hirschi, James P. Karbowski, James L. Tiefenthal, Ronald M. Isaac
  • Patent number: 5316024
    Abstract: A system for detecting the position of an object within a body of biological tissue includes a resonant circuit attached to the object and a probe including a receiver/transmitter that operates at the resonant frequency of the object. The resonant circuit rings in response to pulses transmitted from the probe thereby activating receiver circuits which control a visual display indicating the direction the probe should be moved to center it over the object. When the object is centered a second visual display provides confirmation.
    Type: Grant
    Filed: December 24, 1992
    Date of Patent: May 31, 1994
    Assignee: Abbott Laboratories
    Inventors: Richard E. Hirschi, James P. Karbowski, James L. Tiefenthal, Ronald M. Isaac
  • Patent number: 5263490
    Abstract: An apparatus may be employed for determining the relaxation rate of a muscle which has been caused to contract in response to an electrical stimulus. The relaxation rate may be used in evaluating a person's nutritional status. The apparatus has support for supporting the forearm and wrist of a person in a palm-up position with the wrist extended. An electrical stimulus is applied to the person's ulnar nerve, and the force exerted upon a load cell by the person's thumb is measured. A computer is employed for receiving, storing, plotting and analyzing the force data collected by a transducer.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: November 23, 1993
    Assignee: Abbott Laboratories
    Inventors: James P. Hayes, James L. Tiefenthal, Mark A. McCamish, Jeffrey R. Ross
  • Patent number: D476414
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: June 24, 2003
    Assignee: Abbott Laboratories
    Inventors: Bradford L. Buck, James L. Tiefenthal, Edgar Manosalva, Donna Taylor, William Patton, Steve Nelson, Roger Smith
  • Patent number: D365880
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: January 2, 1996
    Assignee: Abbott Laboratories
    Inventors: James L. Tiefenthal, Donald J. Goldhardt, James D. Morrow
  • Patent number: D365881
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: January 2, 1996
    Assignee: Abbott Laboratories
    Inventors: James L. Tiefenthal, Donald J. Goldhardt, James D. Morrow
  • Patent number: D372455
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: August 6, 1996
    Assignee: Abbott Laboratories
    Inventors: James L. Tiefenthal, Donald J. Goldhardt, James D. Morrow