Patents by Inventor James E. Rudolph

James E. Rudolph 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).

  • Hydrophobic membrane materials for filter venting applications
    Patent number: 6884375
    Abstract: The present invention relates to filtration media having both hydrophobic (water-repellent) properties. The filtration media are produced using a fluorothermoplastic material, such as a terpolymer of tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene. The invention also relates to methods of preparing such filtration media using casting solution phase inversion.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: April 26, 2005
    Assignee: Pall Corporation
    Inventors: I-fan Wang, Richard McDonogh, James E. Rudolph, Jr.
  • Hydrophobic membrane materials for filter venting applications
    Patent number: 6811696
    Abstract: The present invention relates to filtration media having both hydrophobic (water-repellent) properties. The filtration media are produced using a fluorothermoplastic material, such as a terpolymer of tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene. The invention also relates to methods of preparing such filtration media using casting solution phase inversion.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: November 2, 2004
    Assignee: Pall Corporation
    Inventors: I-fan Wang, Richard McDonogh, James E. Rudolph, Jr.
  • Hydrophobic membrane materials for filter venting applications
    Publication number: 20040145073
    Abstract: The present invention relates to filtration media having both hydrophobic (water-repellent) properties. The filtration media are produced using a fluorothermoplastic material, such as a terpolymer of tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene. The invention also relates to methods of preparing such filtration media using casting solution phase inversion.
    Type: Application
    Filed: January 8, 2004
    Publication date: July 29, 2004
    Inventors: I-fan Wang, Richard McDonogh, James E. Rudolph
  • Hydrophobic membrane Materials for filter venting applications
    Publication number: 20030192826
    Abstract: The present invention relates to filtration media having both hydrophobic (water-repellent) properties. The filtration media are produced using a fluorothermoplastic material, such as a terpolymer of tetrafluoroethylene, vinylidene fluoride, and hexafluoropropylene. The invention also relates to methods of preparing such filtration media using casting solution phase inversion.
    Type: Application
    Filed: April 12, 2002
    Publication date: October 16, 2003
    Inventors: I-fan Wang, Richard McDonogh, James E. Rudolph
  • Apparatus for the prevention of retrograde movement of fluids during the use of air eliminating filters in intravenous therapy
    Patent number: 5634905
    Abstract: An apparatus is provided for preventing the retrograde movement of a prescribed fluid away from a patient during use of an air eliminating filter in intravenous therapy. Such retrograde fluid movement is prevented by employing at least one vented valve assembly to prevent the displacement of air into a proximal chamber of an air eliminating filter.
    Type: Grant
    Filed: February 14, 1996
    Date of Patent: June 3, 1997
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: James E. Rudolph, Jr.