Patents by Inventor Richard G. Naegeli, Jr.

Richard G. Naegeli, Jr. 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).

  • I.V. Filter apparatus
    Patent number: 4525182
    Abstract: A filter apparatus is provided which is adapted for filtration of intravenous liquids and separates gas in the incoming intravenous liquid prior to delivering the filtered liquid to a patient. Incoming liquid is passed into a space within a filter holder, which space has a smaller portion that excludes gas due to surface tension forces and a larger portion where gas accumulates. A hydrophobic filter membrane is positioned adjacent the large portion of the space to permit passage of gas from the space. A hydrophilic filter membrane is positioned within the space to filter the liquid prior to administration to the patient.
    Type: Grant
    Filed: August 29, 1983
    Date of Patent: June 25, 1985
    Assignee: Millipore Corporation
    Inventors: Donald B. Rising, Richard G. Naegeli, Jr.