Patents by Inventor Billy J. Moellering

Billy J. Moellering 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).

  • Efficient large-scale purification of immunoglobulins and derivatives
    Patent number: 5118796
    Abstract: Improved methods for direct purification of product immunoglobulins or their derivatives from large volumes of mammalian cell culture medium include directly subjecting the cell culture medium to cation exchange treatment, so as to adsorb the product but not the contaminants. The eluted product is then recycled, or is applied to anion exchange, for further purification, and optionally subjected to additional steps. The product may be obtained in a form suitable for clinical applications, if desired.
    Type: Grant
    Filed: December 9, 1987
    Date of Patent: June 2, 1992
    Assignee: Centocor, Incorporated
    Inventors: Christopher P. Prior, Stephen A. Duffy, Billy J. Moellering