Patents by Inventor Gudrun M. Einarsson

Gudrun M. Einarsson 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 of removal of hepatitis virus
    Patent number: 4168300
    Abstract: Hepatitis virus is removed from a biological material contaminated with the virus by contact with a preparation. The preparation may be agarose gel or beaded polyacrylamide plastic coupled with a variety of hydrophobic ligands.
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: September 18, 1979
    Assignee: AB Kabi
    Inventors: Lars-Olov Andersson, Hakan G. Borg, Gudrun M. Einarsson
  • Purifying and isolating method for hepatitis virus to use in preparing vaccine
    Patent number: 4138287
    Abstract: Hepatitis B virus (detectable as its surface antigen HB.sub.s Ag) is produced in a purification preferably suitable for use in preparing a hepatitis vaccine, by contacting a crude biological starting material containing hepatitis B virus with a water-insoluble cross-linked sulfated polysaccharide gel matrix adsorbing agent to adsorb the hepatitis B virus thereon and then desorbing that virus therefrom by treating that hepatitis B virus carrying adsorbent with a desorbing agent.
    Type: Grant
    Filed: March 15, 1977
    Date of Patent: February 6, 1979
    Assignee: AB Kabi
    Inventors: Lars-Olov Andersson, Gudrun M. Einarsson, Lennart P. Kaplan