Patents by Inventor Paule A. Gattel

Paule A. Gattel 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 preparing the principal proteins of hemolyzed blood in the non-denatured form
    Patent number: 4764279
    Abstract: The process comprises subjecting the hemolyzed blood to a clarification step at a pH of between 4 and 6 in the presence of less than 15% of alcohol, then, after concentration, effecting a chromatography by exchange of anions so as to separate the hemoglobin, the albumin being thereafter eluted. The hemoglobin and the globulins may then be separated out by precipitation with 25% alcohol at a pH of 7. The proteins obtained are in the native state.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: August 16, 1988
    Assignee: Institut Merieux
    Inventors: Jean L. Tayot, Paule A. Gattel, Michel A. Tardy
  • Process for the preparation of purified albumin and albumin obtained by said process
    Patent number: 4169829
    Abstract: Purified albumin is prepared from frozen placenta, placental blood or other hemolyzed blood by the steps of eliminating hemoglobin, eliminating enzymes and eliminating group substances.
    Type: Grant
    Filed: September 30, 1977
    Date of Patent: October 2, 1979
    Assignee: Institut Merieux
    Inventors: Robert Plan, Jacques Liautaud, Marie-France Makula, Paule Gattel, Jean Pla, Andre Debrus
  • Process for the preparation of purified albumin by thermocoagulation and albumin obtained by said process
    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 50.degree. - 64.degree. 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