Patents by Inventor Stephen Kuykendall

Stephen Kuykendall 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).

  • Dialyzer
    Patent number: 6802821
    Abstract: A dialyzer design that includes a potting material encasing a microfiber bundle in each end of a cylindrical body. The potting material is set by spinning the dialyzer in a centrifuge to force the potting material to the ends of the dialyzer interior chamber, where it sets with a non-planar surface. Dialysate fluid distribution rings define a space between the dialyzer interior chamber and dialyzer inlet and outlet ports, and laterally support the microfiber bundle against the dialysate fluid flow pressure. The dialysate fluid distribution ring circumferential edge substantially conforms to the non-planar potting material surface, to ensure that the lateral support to the microfiber bundle is constant, thereby lessening distortion, rupturing and obstruction of the microfibers.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: October 12, 2004
    Assignee: Fresenius USA, Inc.
    Inventors: Veronica Lee Jacobsen, Stephen Kuykendall, Olli Touminen, Troy McGhee
  • Dialyzer
    Publication number: 20030065283
    Abstract: A dialyzer design that includes a potting material encasing a microfiber bundle in each end of a cylindrical body. The potting material is set by spinning the dialyzer in a centrifuge to force the potting material to the ends of the dialyzer interior chamber, where it sets with a non-planar surface. Dialysate fluid distribution rings define a space between the dialyzer interior chamber and dialyzer inlet and outlet ports, and laterally support the microfiber bundle against the dialysate fluid flow pressure. The dialysate fluid distribution ring circumferential edge substantially conforms to the non-planar potting material surface, to ensure that the lateral support to the microfiber bundle is constant, thereby lessening distortion, rupturing and obstruction of the microfibers.
    Type: Application
    Filed: October 1, 2001
    Publication date: April 3, 2003
    Inventors: Veronica Lee Jacobsen, Stephen Kuykendall, Olli Tuominen, Troy McGhee