Patents by Inventor Robert William Van Holten

Robert William Van Holten 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).

  • Viral clearance process
    Patent number: 6096872
    Abstract: Methods for producing immunoglobulins and in particular anti-D immunoglobulin substantially free of virus and product resulting therefrom. Specifically provided are methods for nanofiltration of the anti-D immunoglobulin in high ionic strength buffer and with excipient such as polysorbate 80. Additional steps include diafiltration to concentrate the anti-D protein and reduce the concentration of excipient present.
    Type: Grant
    Filed: October 14, 1997
    Date of Patent: August 1, 2000
    Assignees: Ortho Diagnostic Systems, Inc., Millipore Corporation
    Inventors: Robert William Van Holten, Gilbert J. Quinton, George E. Oulundsen, Jr.