Patents by Inventor Frederick A. Archibald, III

Frederick A. Archibald, III 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: 5665594
    Abstract: A rotating cell vessel (4), designed to be simply constructed, and method of use have been developed. The vessel (4) is constructed of materials which are permeable to oxygen and carbon dioxide, and when rotated horizontally around central axis (10) suspends the contents, cells and particle substrates, in a liquid medium with a low turbulence, low shear fluid environment. The vessel walls (24) are made at least partially of gas permeable material. The vessel (4) is rotated to suspend the cells and substrate particles in a low turbulence liquid nutrient medium. Oxygen continuously diffuses through the permeable vessel material and through the cell culture liquid medium to provide the needed oxygen to the cells. Carbon dioxide diffuses through the cell culture medium and through the vessel wall (24), removing this waste product from the cell culture. A means for entrapping gas bubbles away from cell growth is also provided.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: September 9, 1997
    Assignee: Synthecon, Inc.
    Inventors: Ray P. Schwarz, Frederick A. Archibald, III, William J. Anderson
  • Patent number: 5437998
    Abstract: A new rotating cell vessel and method of use have been developed. The vessel is constructed of materials which are permeable to oxygen and carbon dioxide, and when rotated horizontally suspend the contents, cells and particle substrates, in a liquid medium with a low turbulence, low shear fluid environment. The vessel walls are made at least partially of gas permeable material. The vessel is rotated in a horizontal plane to suspend the cells and substrate particles in a low turbulence liquid nutrient medium. Oxygen continuously diffuses through the permeable vessel material and through the cell culture liquid medium to provide the needed oxygen to the cells. Carbon dioxide diffuses through the cell culture medium and through the vessel wall, removing this waste product from the cell culture. The vessel is uniquely designed to be simply constructed.
    Type: Grant
    Filed: September 9, 1993
    Date of Patent: August 1, 1995
    Assignee: Synthecon, Inc.
    Inventors: Ray P. Schwarz, Frederick A. Archibald, III