Patents by Inventor Erzsebet Dala nee Rezneki

Erzsebet Dala nee Rezneki 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).

  • Isolation of carboxypeptidase B enzyme
    Patent number: 4650762
    Abstract: Carboxypeptidase B enzyme is isolated by a process wherein homogenized and autolyzed pancreas is subjected to a thermal treatment, and carboxypeptidase B is separated by fractionation with ammonium sulfate. This process produces carboxypeptidase B having satisfactory specific activity while eliminating the use of pancreas cell fluid or an acetonous powder from pancreas as a starting material. The isolated carboxypeptidase B may be immobilized on a polymer gel containing carboxy groups activated with a carbodiimide.
    Type: Grant
    Filed: April 2, 1984
    Date of Patent: March 17, 1987
    Assignee: Reanal Finomvegyszergyar
    Inventors: Laszlo Boross, Erzsebet Dala nee Rezneki, Aranka Kiss nee Deer, Bela Szajani, Arpad Tetzli