Patents by Inventor Stefan Kjell Eriksson

Stefan Kjell Eriksson 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).

  • Patent number: 10758988
    Abstract: The present invention relates to methods for conducting maintenance on chromatography columns used in industrial-scale chromatography. In particular, the invention is concerned with safer methods for performing maintenance on such columns, such as cleaning and replacing bed supports, distributors, nozzles, O-rings and other column components, by the use of a handling device to support, lift, carry and manipulate such column components.
    Type: Grant
    Filed: September 18, 2014
    Date of Patent: September 1, 2020
    Assignee: Cytiva Sweden AB
    Inventors: John Davis, Stefan Kjell Eriksson
  • Patent number: 10571441
    Abstract: The invention discloses a piston for a process column, said piston comprising a top side and a bed contact side, wherein said top side comprises a drainage trench.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: February 25, 2020
    Assignee: GE Healthcare Bio-Sciences AB
    Inventors: Andreas Bergstrom, Stefan Kjell Eriksson
  • Patent number: 10307692
    Abstract: A chromatography column including: a tubular housing; a first end unit removably connected to a first end of the tubular housing; a second end unit removably connected to a second end of the tubular housing; an adaptor assembly movable within said tubular housing; an adaptor rod connected to said adaptor assembly, which adaptor rod is arranged to extend through an opening in the first end unit; a filter removably connected to the adaptor assembly; and a frame connected to said tubular housing for supporting the column on a floor. At least an actuating means is arranged on the frame, so that the column can be lifted and lowered in a substantially vertical direction.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: June 4, 2019
    Assignee: GE Healthcare Bio-Sciences AB
    Inventors: Stefan Kjell Eriksson, Andreas Bergstrom
  • Patent number: 10201768
    Abstract: An adaptor for a chromatography column, the adaptor comprising a substantially circular bottom plate provided with an end surface; a ring shaped wall element arranged at the periphery of the bottom plate. The bottom plate and the wall element having a common axis and the adaptor is provided with a filter connection arrangement for removably connecting a filter on the end surface of the bottom plate of the adaptor.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: February 12, 2019
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Stefan Kjell Eriksson, Andreas Bergstrom
  • Publication number: 20160305918
    Abstract: The invention discloses a piston for a process column, said piston comprising a top side and a bed contact side, wherein said top side comprises a drainage trench.
    Type: Application
    Filed: December 8, 2014
    Publication date: October 20, 2016
    Inventors: Andreas Bergstrom, Stefan Kjell Eriksson
  • Publication number: 20150336027
    Abstract: A chromatography column including: a tubular housing; a first end unit removably connected to a first end of the tubular housing; a second end unit removably connected to a second end of the tubular housing; an adaptor assembly movable within said tubular housing; an adaptor rod connected to said adaptor assembly, which adaptor rod is arranged to extend through an opening in the first end unit; a filter removably connected to the adaptor assembly; and a frame connected to said tubular housing for supporting the column on a floor. At least an actuating means is arranged on the frame, so that the column can be lifted and lowered in a substantially vertical direction.
    Type: Application
    Filed: June 18, 2013
    Publication date: November 26, 2015
    Applicant: GE Healthcare Bio-Sciences AB
    Inventors: Stefan Kjell ERIKSSON, Andreas BERGSTROM
  • Publication number: 20150321121
    Abstract: An adaptor for a chromatography column, the adaptor comprising a substantially circular bottom plate provided with an end surface; a ring shaped wall element arranged at the periphery of the bottom plate. The bottom plate and the wall element having a common axis and the adaptor is provided with a filter connection arrangement for removably connecting a filter on the end surface of the bottom plate of the adaptor.
    Type: Application
    Filed: June 18, 2013
    Publication date: November 12, 2015
    Inventors: Stefan Kjell ERIKSSON, Andreas BERGSTROM
  • Patent number: 9138662
    Abstract: A chromatography column and method of maintenance is described which does not require the use of a hoist or crane for disassembly. The method provides improved operator safety by reducing the need for the operator to work below a suspended or supported load within the column. Furthermore, the removal or replacement of column components is facilitated by providing access to the interior of the column and by the provision of a handling device.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: September 22, 2015
    Assignee: GE Healthcare Bio-Sciences AB
    Inventor: Stefan Kjell Eriksson
  • Patent number: 9138661
    Abstract: A chromatography column and method of maintenance is described which does not require the use of a hoist or crane for disassembly. The method provides improved operator safety by reducing the need for the operator to work below a suspended or supported load within the column. Furthermore, the removal or replacement of column components is facilitated by providing access to the interior of the column and by the provision of a handling device.
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: September 22, 2015
    Assignee: GE Healthcare Bio-Sciences AB
    Inventor: Stefan Kjell Eriksson
  • Publication number: 20150001775
    Abstract: The present invention relates to methods for conducting maintenance on chromatography columns used in industrial-scale chromatography. In particular, the invention is concerned with safer methods for performing maintenance on such columns, such as cleaning and replacing bed supports, distributors, nozzles, O-rings and other column components, by the use of a handling device to support, lift, carry and manipulate such column components.
    Type: Application
    Filed: September 18, 2014
    Publication date: January 1, 2015
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: JOHN DAVIS, STEFAN KJELL ERIKSSON
  • Patent number: 8343349
    Abstract: A method of maintenance of a chromatography column is described which does not require the use of a hoist or crane for disassembly. The method provides improved operator safety by reducing the need for the operator to work below a suspended or supported load within the column. The provision of guide elements which can be reversibly attached to the column facilitates removal or insertion of column components.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: January 1, 2013
    Assignee: GE Healthcare Bio-Sciences AB
    Inventors: Stefan Kjell Eriksson, John Davis, Mats O. Hansson, Kyril Dambuleff, Roger Nordberg
  • Publication number: 20120279034
    Abstract: A method of maintenance of a chromatography column is described which does not require the use of a hoist or crane for disassembly. The method provides improved operator safety by reducing the need for the operator to work below a suspended or supported load within the column. The provision of guide elements which can be reversibly attached to the column facilitates removal or insertion of column components.
    Type: Application
    Filed: July 17, 2012
    Publication date: November 8, 2012
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: STEFAN KJELL ERIKSSON, JOHN DAVIS, MATS O. HANSSON, KYRIL DAMBULEFF, ROGER NORDBERG
  • Patent number: 8246833
    Abstract: A method of maintenance of a chromatography column is described which does not require the use of a hoist or crane for disassembly. The method provides improved operator safety by reducing the need for the operator to work below a suspended or supported load within the column. The provision of guide elements which can be reversibly attached to the column facilitates removal or insertion of column components.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: August 21, 2012
    Assignee: GE Healthcare Bio-Sciences AB
    Inventors: Stefan Kjell Eriksson, John Davis, Mats O. Hansson, Kyril Dambuleff, Roger Nordberg
  • Publication number: 20110147311
    Abstract: A method of maintenance of a chromatography column is described which does not require the use of a hoist or crane for disassembly. The method provides improved operator safety by reducing the need for the operator to work below a suspended or supported load within the column. The provision of guide elements which can be reversibly attached to the column facilitates removal or insertion of column components.
    Type: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Stefan Kjell ERIKSSON, John DAVIS, Mats O. HANSSON, Kyril DAMBULEFF, Roger NORDBERG
  • Patent number: D639980
    Type: Grant
    Filed: December 20, 2007
    Date of Patent: June 14, 2011
    Assignee: GE Healthcare Bio-Sciences AB
    Inventors: John Davis, Stefan Kjell Eriksson