Patents by Inventor Kjell Eriksson

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: 10384080
    Abstract: A method for generating a radiotherapy treatment plan for a patient is provided. The treatment plan is optimized using an optimization objective which is at least partly based on an initially planned dose to the patient.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: August 20, 2019
    Assignee: RaySearch Laboratories AB
    Inventor: 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
  • Publication number: 20190111280
    Abstract: A method of optimizing a radiotherapy treatment plan is disclosed, comprising the steps of: a. obtaining a deliverable input treatment plan; b. optimizing the deliverable input treatment plan to obtain an optimized treatment plan, using an objective function and at least one constraint, wherein i. the objective function is related to reducing the plan complexity in terms of minimizing the machine output (MU) and/or minimizing the time required to deliver the plan and/or maximizing the segment area, and/or minimizing jaggedness of the MLC shapes, ii. to ensure that the quality is maintained, the at least one constraint is based on the dose distribution of the input plan, related to maintaining an acceptable dose distribution.
    Type: Application
    Filed: June 10, 2016
    Publication date: April 18, 2019
    Applicant: RaySearch Laboratories AB
    Inventor: Kjell ERIKSSON
  • 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: 20180221685
    Abstract: An interpolation of deliverable radiotherapy treatment plans is facilitated by restricting the movement of the multi-leaf collimator leaves between optimization steps.
    Type: Application
    Filed: June 9, 2016
    Publication date: August 9, 2018
    Applicant: RaySearch Laboratories AB
    Inventor: Kjell ERIKSSON
  • Publication number: 20160303398
    Abstract: A method for generating a radiotherapy treatment plan for a patient is provided. The treatment plan is optimized using an optimization objective which is at least partly based on an initially planned dose to the patient.
    Type: Application
    Filed: December 20, 2013
    Publication date: October 20, 2016
    Inventor: Kjell ERIKSSON
  • 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
  • Patent number: 9409967
    Abstract: The present invention is within the field of biomolecule purification. More closely the invention relates to chromatographic purification of insulin using a specific kind of shell beads having an inner core and an outer functionalized layer. The method enables purification at high flow rates and high purity, over 90%.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: August 9, 2016
    Assignee: GE Healthcare BioProcess R&D AB
    Inventors: Eggert Brekkan, Kjell Eriksson, Bo-Lennart Johansson, Jamil Shanagar
  • Patent number: 9279273
    Abstract: The invention relates to a lock comprising a housing (14, 55), a key operated lock cylinder (13, 51), which is arranged rotatable in the lock housing and a lock catch (11, 60), which is connected to the lock cylinder and rotatable between a locking position and a releasing position. The lock is arranged to be selectively set in a key operated mode, wherein the lock catch is rotatable with the lock cylinder, or in a push button operated mode, wherein the lock catch is movable by axial displacement of the lock cylinder.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: March 8, 2016
    Assignee: ASSA AB
    Inventors: Kjell Eriksson, Jonas Herrmann, Bjorn Larsson
  • 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
  • Publication number: 20140243498
    Abstract: The present invention is within the field of biomolecule purification. More closely the invention relates to chromatographic purification of insulin using a specific kind of shell beads having an inner core and an outer functionalized layer. The method enables purification at high flow rates and high purity, over 90%.
    Type: Application
    Filed: September 28, 2012
    Publication date: August 28, 2014
    Inventors: Eggert Brekkan, Kjell Eriksson, Bo-Lennart Johansson, Jamil Shanagar
  • Patent number: 8561441
    Abstract: A lockable container arrangement includes an interior and an exterior, the container includes a base part, a cover pivotally attached to the base part for displacement between a closed position in which the cover and the base delimit a substantially enclosed space and an open position, a lock mounted on the container, the lock including a lock catch operable from the exterior of the container, which lock catch engages a receiving portion to lock the container. The container arrangement can be selectively set in a key operated mode where the lock catch is operable by a key, or in a push button operated mode where the lock catch is operable by the application of a force onto the lock by a user.
    Type: Grant
    Filed: April 4, 2008
    Date of Patent: October 22, 2013
    Assignee: SCA Hygiene Products AB
    Inventors: Jonas Herrmann, Kjell Eriksson, Bjorn Larsson, Per Moller
  • 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