Patents by Inventor Peter Alliger

Peter Alliger 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).

  • Process for the purification of recombinant polypeptides
    Publication number: 20060173167
    Abstract: This invention relates to a method for purification of a recombinant polypeptide of interest, which polypeptide upon expression has been secreted into the periplasm of a transformed host cell.
    Type: Application
    Filed: August 12, 2004
    Publication date: August 3, 2006
    Inventors: Gunter Stempfer, Peter Alliger, Norbert Palma
  • Chromatographic purification of recombinant human erythropoietin
    Publication number: 20060099674
    Abstract: The invention provides a method for recovering and purifying recombinant human erythropoietin (rhEpo) from a cell culture medium comprising host cells, which method comprises the steps of: (a) removing host cells, cellular constituents and debris from the cell culture medium by centrifugation using a disc stack separator followed by a depth filtration step to obtain a clarified culture medium supernatant; (b) adjusting the conductivity of the supernatant to 5 mS/cm or less, and a pH of between about 7.0 and 8.
    Type: Application
    Filed: November 26, 2002
    Publication date: May 11, 2006
    Inventors: Peter Alliger, Norbert Palma