Patents by Inventor Helena Widegren

Helena Widegren 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 for dry packing chromatography columns
    Patent number: 9958421
    Abstract: The invention provides a packing method for high efficiency chromatography columns starting from dry swellable particles, as well as columns packed by the method and the use of the columns in separation of biomolecules. In the packing method, an amount of dry swellable particles sufficient to give a swollen volume in a liquid of about 105-120% of the column chamber volume is transferred to the column, the column is closed and the liquid is provided to the column.
    Type: Grant
    Filed: December 20, 2010
    Date of Patent: May 1, 2018
    Assignee: GE Healthcare BioProcess R&D AB
    Inventors: Klaus Gebauer, Elisabeth Hallgren, Raf Lemmens, Ola Lind, Bjorn Lundgren, Jamil Shanagar, Kajsa Stridsberg-Friden, Helena Widegren
  • METHOD FOR DRY PACKING CHROMATOGRAPHY COLUMNS
    Publication number: 20120267299
    Abstract: The invention provides a packing method for high efficiency chromatography columns starting from dry swellable particles, as well as columns packed by the method and the use of the columns in separation of biomolecules. In the packing method, an amount of dry swellable particles sufficient to give a swollen volume in a liquid of about 105-120% of the column chamber volume is transferred to the column, the column is closed and the liquid is provided to the column.
    Type: Application
    Filed: December 20, 2010
    Publication date: October 25, 2012
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Klaus Gebauer, Elisabeth Hallgren, Raf Lemmens, Ola Lind, Bjorn Lundgren, Jamil Shanagar, Kajsa Stridsberg-Friden, Helena Widegren