Patents by Inventor Timothy C. Gebhard

Timothy C. Gebhard 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).

  • Multi-bioreactor hollow fiber cell propagation system and method
    Patent number: 5656421
    Abstract: A unique hollow fiber multiple bioreactor system and method for the propagation of cells and the production of various cell propagation products is described. Simultaneous fluid flow through lumens of hollow fibers in bioreactors is maintained constant across multiple bioreactors so production is maintained essentially constant. The system and method include use of a flow block holder which allows a dissolved oxygen probe to be calibrated at the same pressure as the media in the bioreactor system.
    Type: Grant
    Filed: February 12, 1991
    Date of Patent: August 12, 1997
    Assignee: UniSyn Technologies, Inc.
    Inventors: Timothy C. Gebhard, Uday Kumar Veeramallu
  • Hollow fiber cell propagation system and method
    Patent number: 5126238
    Abstract: A unique hollow fiber bioreactor system and method for the propagation of cells and the production of various cell propagation products is described. The system and method include the use of a flow block holder which allows a dissolved oxygen probe to be calibrated at the same pressure as the media in the bioreactor system.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: June 30, 1992
    Assignee: Unisyn Fibertec Corporation
    Inventors: Timothy C. Gebhard, Uday K. Veeramallu