Patents by Inventor Agneta Paulsson

Agneta Paulsson 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 cultivating bacteria proteins that are expressed in a temperature regulated manner
    Patent number: 5935838
    Abstract: A method of cultivating bacteria having genes in plasmids which code for surface or membrane bound antigens or other proteins and which are expressed in a temperature regulated manner for the production of desired bacterial products, is disclosed. The bacteria are first cultivated in a culture medium to an inoculum under such temperature conditions that the bacteria retain their plasmids and no expression occurs, e.g. 20.degree. C., and then in a culture medium under such temperature conditions that expression occurs and before the bacteria lose their plasmids they are harvested, and the desired product is isolated.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: August 10, 1999
    Assignee: SBL Vaccin AB
    Inventors: Per Askelof, Nils Carlin, Bo Nilsson, Agneta Paulsson