Patents by Inventor Charles Lutsch

Charles Lutsch 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).

  • Method for purifying factor VIII and preparations obtained
    Patent number: 5371195
    Abstract: In the method for purifying factor VIII from cryoprecipitate, which is dissolved and then treated with alumina gel, the extract is diluted to a protein concentration not exceeding approximately 5 g/l and subjected to viral inactivation with solvent/detergent, the inactivated extract containing the solvent/detergent is then subjected to chromatography on a weak anion exchange column which is hydrophilic in nature and factor VIII is then eluted with a dissociating buffer.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: December 6, 1994
    Assignee: Pasteur Merieux
    Inventors: Michel Grandgeorge, Charles Lutsch