Patents by Inventor Jean F. Pla

Jean F. Pla 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: 4302445
    Abstract: A method is disclosed for concentrating and purifying antihemophilic factor (AHF or Factor VIII), a cryoprecipitate is collected from frozen human plasma and cold washed with pyrogen-free distilled water or water saline. The washed cryoprecipitate is extracted with pyrogen-free distilled water, the prothrombin complex is removed and the fibrinogen is precipitated. The remaining purified solution is ultrafiltered to form a highly concentrated Factor VIII solution.
    Type: Grant
    Filed: January 18, 1980
    Date of Patent: November 24, 1981
    Assignee: Institut Merieux
    Inventors: Jean F. Pla, Jacques C. Liautaud
  • Patent number: 3992367
    Abstract: Purified albumin is prepared from an albumin solution containing foreign or denatured proteins by heating the solution in the presence of caprylic acid at a pH of 4.8 - 5.25 at a temperature between - C. The amount of caprylic acid expressed in weight of sodium caprylate is between 15 - 30% by weight of the proteins in said solution.
    Type: Grant
    Filed: July 3, 1973
    Date of Patent: November 16, 1976
    Assignee: Institut Merieux
    Inventors: Robert A. M. Plan, Jacques C. Liautaud, Marie-France Makula, Paule A. Gattel, Jean F. Pla, Andre J. M. Debrus