Patents by Inventor Stefan Sjolander

Stefan Sjolander 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: 10768108
    Abstract: A Surface Plasmon Resonance (SPR) biosensor system comprising: a SPR sensor surface, an illumination unit arranged to direct a wedge shaped beam of light at a line shaped detection area on the SPR sensor surface transverse to the direction of propagation of light, and a detection unit with detection optics for directing light reflected from the SPR sensor surface onto a two-dimensional optical detector unit such that the angle of reflection is imaged along one dimension and the width of the detection area along the other, wherein the illumination unit is arranged to selectively direct the wedge shaped beam of light at two or more spaced apart line shaped detection areas on the SPR sensor surface transverse to the direction of propagation of light.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: September 8, 2020
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Bengt Ivarsson, Stefan Sjolander
  • Publication number: 20200232576
    Abstract: The invention relates to valve system for controlling a process fluid within a liquid processing system. The valve system comprises a valve arrangement, a pneumatic control system, and a connector unit. When the valve arrangement is connected to the connector unit, two or more valves are formed, such that the pneumatic control system controls an open/close or pressure control mode of the valves. A pump diaphragm system is disclosed, as well as a system for purifying a biological material that comprises the valve system or the pump diaphragm system. Also discloses are methods of using the valve system or the pump diaphragm system in a process for the purification of a biological material.
    Type: Application
    Filed: December 9, 2019
    Publication date: July 23, 2020
    Applicant: GE Healthcare Bio-Sciences AB
    Inventors: Klaus Heinrich Gebauer, Stefan Sjolander
  • Patent number: 10533680
    Abstract: The invention relates to valve system for controlling a process fluid within a liquid processing system. The valve system comprises a valve arrangement, a pneumatic control system, and a connector unit. When the valve arrangement is connected to the connector unit, two or more valves are formed, such that the pneumatic control system controls an open/close or pressure control mode of the valves. A pump diaphragm system is disclosed, as well as a system for purifying a biological material that comprises the valve system or the pump diaphragm system. Also discloses are methods of using the valve system or the pump diaphragm system in a process for the purification of a biological material.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: January 14, 2020
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Klaus Heinrich Gebauer, Stefan Sjolander
  • Patent number: 10451591
    Abstract: The invention relates to valve system for controlling a process fluid within a liquid processing system. The valve system comprises a valve arrangement, a pneumatic or hydraulic control system, and a connector unit. When the valve arrangement is connected to the connector unit, two or more valves are formed, such that the pneumatic or hydraulic control system controls an open/close or pressure control mode of the valves. A pump diaphragm system is disclosed, as well as a system for purifying a biological material that comprises the valve system or the pump diaphragm system. Also discloses are methods of using the valve system or the pump diaphragm system in a process for the purification of a biological material.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: October 22, 2019
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Klaus Gebauer, Stefan Sjolander, Andreas Torbjorn Lundin
  • Publication number: 20190308189
    Abstract: A self-adhesive layered septum is disclosed. In one example, the septum includes a first outer layer including a thermoplastic elastomer such as a styrenic block copolymer, containing styrene ethylene butylene styrene (TPE-SEBS) capable of closing at least partially an aperture formed when a needle is inserted through the layer; an adhesive second layer for adhering the septum to a mouth area of a well or container to which the septum is attachable; and a thermoplastic third layer between the first and second layers, thermobonded to the first layer and providing better adherence for the adhesive layer. The first layer includes a recess and a vent, which reduce pressure differentials in use, but together with the third layer minimize evaporation through the septum.
    Type: Application
    Filed: July 6, 2017
    Publication date: October 10, 2019
    Inventors: Hakan Erik Roos, Stefan Sjolander, Per Kjellin, Bharath Subrahmanya
  • Patent number: 9975123
    Abstract: The invention relates to a method for making a laminated microfluidics with membrane valves. The method comprises (a) generating a membrane valve assembly comprising (1) laminating three plastic foils together, the top foil comprising one through hole for each valve, the middle foil has a slit pattern connecting each valve hole of the top foil, and the bottom foil has one through hole for each valve and one additional hole entering the slit pattern; (2) placing the laminated foil, bottom foil down on a mould half having a smooth mould surface with one or more perpendicularly protruding cylinders that concentrically fit within the through holes of the laminated foil yet leave room for a membrane to form, and clamping a second mould half to close the mould; (3) injecting and allowing to cure a liquid rubber through a funnel associated with the bottom mould half and the additional hole on the bottom foil layer; and (b) laminating the membrane valve assembly and a flow path.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: May 22, 2018
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventor: Stefan Sjolander
  • Patent number: 9958438
    Abstract: A flow cell unit to be docked against a flat lid surface to form a closed flow cell arrangement, the flow cell unit comprising a top surface with protruding walls of elastic material defining three or more adjacent elongated flow channels, each flow channel comprises a first fluid port and a second fluid port, wherein the walls separating adjacent flow channels comprises a valve section of reduced height, thereby allowing selective opening and closing of a flow path transverse to the elongated flow channels by controlling the docking force between flow cell and the lid surface to an open docking state and a closed docking state respectively.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 1, 2018
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventor: Stefan Sjolander
  • Publication number: 20160319955
    Abstract: The invention relates to valve system for controlling a process fluid within a liquid processing system. The valve system comprises a valve arrangement, a pneumatic control system, and a connector unit. When the valve arrangement is connected to the connector unit, two or more valves are formed, such that the pneumatic control system controls an open/close or pressure control mode of the valves. A pump diaphragm system is disclosed, as well as a system for purifying a biological material that comprises the valve system or the pump diaphragm system. Also discloses are methods of using the valve system or the pump diaphragm system in a process for the purification of a biological material.
    Type: Application
    Filed: December 19, 2014
    Publication date: November 3, 2016
    Inventors: Klaus Heinrich Gebauer, Stefan Sjolander
  • Publication number: 20160310946
    Abstract: The invention relates to a method for making a laminated microfluidics with membrane valves. The method comprises (a) generating a membrane valve assembly comprising (1) laminating three plastic foils together, the top foil comprising one through hole for each valve, the middle foil has a slit pattern connecting each valve hole of the top foil, and the bottom foil has one through hole for each valve and one additional hole entering the slit pattern; (2) placing the laminated foil, bottom foil down on a mould half having a smooth mould surface with one or more perpendicularly protruding cylinders that concentrically fit within the through holes of the laminated foil yet leave room for a membrane to form, and clamping a second mould half to close the mould; (3) injecting and allowing to cure a liquid rubber through a funnel associated with the bottom mould half and the additional hole on the bottom foil layer; and (b) laminating the membrane valve assembly and a flow path.
    Type: Application
    Filed: November 28, 2014
    Publication date: October 27, 2016
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventor: Stefan Sjolander
  • Patent number: 9383335
    Abstract: Electrophoresis gel cassette comprising a first and a second face wall member and one or more side wall members defining a gel compartment for a gel member with a first and second face, wherein at least a section of each one of the first and second face wall member is removable to expose a section of both the first and second face of the gel member essentially corresponding to the separation zone while the gel member is preserved in the cassette.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: July 5, 2016
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Lennart Bjorkesten, Owe Salven, Camilla Larsson, Erik J Bjerneld, Sofia Edlund, Henrik Ostlin, Stefan Sjolander, Kajsa Stridsberg-Friden, Ola Ronn, Peter Oliviusson, Henrik Bjorkman
  • Patent number: 9377436
    Abstract: Electrophoresis gel cassette comprising a cassette housing defining a gel compartment for molding a gel member wherein the gel compartment comprises a fill port at an inlet end of the gel compartment and one or more over-fill ports at a distal end of the gel compartment with respect to a filling direction, and wherein the over-fill port(s) is arranged in fluidic communication with an overfill chamber.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: June 28, 2016
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Owe Salven, Camilla Larsson, Stefan Ogeus, Henrik Ostlin, Stefan Sjolander, Malin Eriksson
  • Patent number: 9360452
    Abstract: Electrophoresis tray arranged to support an electrophoresis cassette for miming electrophoresis experiments, the electrophoresis cassette comprising a gel member in a housing with a front and a back face, wherein the tray comprises a cassette support surface for supporting at least the separation zone of the electrophoresis cassette during electrophoresis, and wherein the cassette support surface is flanked by a pair of buffer pad holders each one arranged to hold a buffer pad in a mating position with respect to buffer connection sections at the back face of the electrophoresis cassette.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: June 7, 2016
    Assignee: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Owe Salven, Camilla Larsson, Henrik Ostlin, Stefan Sjolander, Kajsa Stridsberg-Friden, Peter Oliviusson, Tomas Haukkala, Kjell Larsson, Anders Jahge
  • Publication number: 20150219597
    Abstract: Electrophoresis system comprising at least one type of electrophoresis gel card, at least one type of blot membrane card, an electrophoresis apparatus for running electrophoresis experiments using the electrophoretic gel card, a blot transfer unit for transfer of separated sample from the electrophoresis gel card to the blot membrane card, an imaging apparatus for recording images of separated sample in the electrophoresis gel card and the blot membrane card, wherein; the electrophoresis gel card and the blot membrane card each comprises a rigid support provided with an alignment structure defining a positional reference for mutual alignment during transfer, and for alignment with respect to a complementary alignment structure in the imaging apparatus to provide mechanically aligned images of separated sample in the electrophoresis gel card and the blot membrane card.
    Type: Application
    Filed: May 31, 2013
    Publication date: August 6, 2015
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Camilla Larsson, Henrik Ostlin, Stefan Sjolander, Anders Jahge, Kajas Stridsberg-Friden
  • Publication number: 20150192542
    Abstract: Method of manufacturing an electrophoresis gel cassette with a cassette housing defining a gel compartment for molding a gel member,comprising the steps of: molding in a rigid material a cassette housing member with an external face, an internal face defining at least a section of the gel compartment, and at least one opening for providing access to the gel compartment from the external face, and molding a closing member formed to close the at least one opening of the cassette housing member at the external face, wherein the closing member is molded with the cassette housing member acting partly as mold, and is comprised of an elastic material with non-permanent adhesion to the rigid material to make the closing member selectively removable.
    Type: Application
    Filed: May 31, 2013
    Publication date: July 9, 2015
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Camilla Larsson, Henrik Ostlin, Stefan Sjolander, Anders Jahge, Kajas Stridsberg-Friden
  • Publication number: 20150185181
    Abstract: Electrophoresis gel cassette comprising a first and a second face wall member and one or more side wall members defining a gel compartment for a gel member with a first and second face, wherein at least a section of each one of the first and second face wall member is removable to expose a section of both the first and second face of the gel member essentially corresponding to the separation zone while the gel member is preserved in the cassette.
    Type: Application
    Filed: May 31, 2013
    Publication date: July 2, 2015
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Lennart Bjorkesten, Owe Salven, Camilla Larsson, Erik J. Bjerneld, Sofia Edlund, Henrik Ostlin, Stefan Sjolander, Kajsa Stridsberg-Friden, Ola Ronn, Peter Oliviusson, Henrik Bjorkman
  • Publication number: 20150177186
    Abstract: Electrophoresis gel unit comprising a flat gel member with an upper and a lower face and a sample separation zone, wherein the gel member is attached to a rigid support arranged to preserve the shape of and to facilitate handling of the gel member, wherein the rigid support is formed to allow access to a section of both the upper and lower face of the gel member essentially corresponding to the separation zone.
    Type: Application
    Filed: May 31, 2013
    Publication date: June 25, 2015
    Applicant: GE HEALTHCARE BIO-SCIENCES AB
    Inventors: Lennart Bjorkesten, Owe Salven, Camilla Larsson, Erik J. Bjerneld, Sofia Edlund, Henrik Ostlin, Stefan Sjolander, Kajsa Stridsberg-Friden, Ola Ronn, Peter Oliviusson, Henrik Bjorkman
  • Publication number: 20150160155
    Abstract: Electrophoresis gel cassette comprising a cassette housing defining a gel compartment for molding a gel member wherein the gel compartment comprises a fill port at an inlet end of the gel compartment and one or more over-fill ports at a distal end of the gel compartment with respect to a filling direction, and wherein the over-fill port(s) is arranged in fluidic communication with an overfill chamber.
    Type: Application
    Filed: May 31, 2013
    Publication date: June 11, 2015
    Inventors: Owe Salven, Camilla Larsson, Stefan Ogeus, Henrik Ostlin, Stefan Sjolander, Malin Eriksson
  • Patent number: D733918
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: July 7, 2015
    Assignee: GE Healthcare Bio-Sciences AB
    Inventor: Stefan Sjolander
  • Patent number: D733919
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: July 7, 2015
    Assignee: GE Healthcare Bio-Sciences AB
    Inventor: Stefan Sjolander
  • Patent number: D733922
    Type: Grant
    Filed: May 13, 2014
    Date of Patent: July 7, 2015
    Assignee: GE Healthcare Bio-Sciences AB
    Inventor: Stefan Sjolander