Patents by Inventor Erik Engwall

Erik Engwall 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).

  • Publication number: 20200129782
    Abstract: A method of optimizing a radiation treatment plan of ion treatment, in which the optimization procedure is interrupted, some but not all low-weight spots are discarded and the optimization procedure is resumed with a reduced set of spots. The weight of one or more remaining spots may be increased before resuming the optimization procedure, for example by adding the spot weight of one or more of the discarded spots to one or more of the remaining spots.
    Type: Application
    Filed: October 30, 2019
    Publication date: April 30, 2020
    Applicant: RaySearch Laboratories AB
    Inventors: Oscar STÅL, Erik ENGWALL, Martin JANSON, Lars GLIMELIUS, Erik TRANEUS, Kjell ERIKSSON
  • Publication number: 20190344097
    Abstract: A system for determining a treatment plan in active ion beam treatment, to minimize unwanted dose, while maintaining or improving target dose coverage, whereby a beam is split into at least two sub-beams and where each sub-beam has a range shifter of different settings.
    Type: Application
    Filed: December 20, 2017
    Publication date: November 14, 2019
    Applicant: RaySearch Laboratories AB
    Inventors: Erik ENGWALL, Martin JANSON, Erik TRANEUS
  • Publication number: 20180289980
    Abstract: An optimization method for a radiotherapy plan using robust optimization to handle different scenarios that may occur during one treatment session because of patient movement. The optimization is based on the period and amplitude of the movement, the starting point of the treatment session within a period and the delivery time structure.
    Type: Application
    Filed: April 11, 2016
    Publication date: October 11, 2018
    Applicant: RaySearch Laboratories AB
    Inventors: Albin FREDRIKSSON, Erik ENGWALL
  • Publication number: 20180020137
    Abstract: A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, and a control unit. The frame may be adapted for wearing by a user and include an eyeglass frame having a nose bridge. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The optics holding member may be coupled with the nose bridge. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, and receive the image data from the at least one image sensor.
    Type: Application
    Filed: May 30, 2017
    Publication date: January 18, 2018
    Applicant: Tobii AB
    Inventors: Erik Engwall, Jonas Andersson, Richard Hainzl, Simon Gustafsson
  • Patent number: 9665172
    Abstract: A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, and a control unit. The frame may be adapted for wearing by a user and include an eyeglass frame having a nose bridge. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The optics holding member may be coupled with the nose bridge. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, and receive the image data from the at least one image sensor.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 30, 2017
    Assignee: Tobii AB
    Inventors: Erik Engwall, Jonas Andersson, Richard Hainzl, Simon Gustafsson
  • Patent number: 9041787
    Abstract: A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, and a control unit. The frame may be adapted for wearing by a user. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user, and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, and receive the image data from the at least one image sensor.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: May 26, 2015
    Assignee: TOBII AB
    Inventors: Jonas Andersson, Simon Gustafsson, Erik Engwall, Richard Hainzl, Anders Clausen, Jan Norden
  • Publication number: 20150061995
    Abstract: A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, a movement sensor, and a control unit. The frame may be a frame adapted for wearing by a user. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user, and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The movement sensor may be configured to detect movement of the frame. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, receive the image data from the image sensors, and receive information from the movement sensor.
    Type: Application
    Filed: May 19, 2014
    Publication date: March 5, 2015
    Applicant: TOBBI TECHNOLOGY AB
    Inventors: Simon Gustafsson, Jonas Andersson, Erik Engwall, Richard Hainzl, Lars-Ola Leksén, Markus Cederlund
  • Publication number: 20150061996
    Abstract: A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, and a control unit. The frame may be adapted for wearing by a user and include an eyeglass frame having a nose bridge. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The optics holding member may be coupled with the nose bridge. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, and receive the image data from the at least one image sensor.
    Type: Application
    Filed: May 19, 2014
    Publication date: March 5, 2015
    Applicant: TOBII TECHNOLOGY AB
    Inventors: Simon Gustafsson, Jonas Andersson, Erik Engwall, Richard Hainzl, Lars-Ola Leksén, Markus Cederlund
  • Publication number: 20150062323
    Abstract: A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, and a control unit. The frame may be adapted for wearing by a user. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user, and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, receive the image data from the at least one image sensor, and calibrate at least one illuminator, at least one image sensor, or an algorithm of the control unit.
    Type: Application
    Filed: May 19, 2014
    Publication date: March 5, 2015
    Applicant: TOBBI TECHNOLOGY AB
    Inventors: Simon Gustafsson, Jonas Andersson, Erik Engwall, Richard Hainzl, Lars-Ola Leksén, Markus Cederlund
  • Publication number: 20150062322
    Abstract: A portable eye tracker device is disclosed which includes a frame, at least one optics holding member, and a control unit. The frame may be adapted for wearing by a user. The at least one optics holding member may include at least one illuminator configured to selectively illuminate at least a portion of at least one eye of the user, and at least one image sensor configured to capture image data representing images of at least a portion of at least one eye of the user. The control unit may be configured to control the at least one illuminator for the selective illumination of at least a portion of at least one eye of the user, and receive the image data from the at least one image sensor.
    Type: Application
    Filed: May 19, 2014
    Publication date: March 5, 2015
    Applicant: TOBBI TECHNOLOGY AB
    Inventors: Simon Gustafsson, Jonas Andersson, Erik Engwall, Richard Hainzl, Lars-Ola Leksén, Markus Cederlund
  • Publication number: 20090114574
    Abstract: Provided is an apparatus for automated separation of a target compound from a sample using magnetic particles, which apparatus comprises a pipette head assembly for dispensing liquid through one or more pipette tips attachable thereto to one or more vials and a magnetic rod which is movable within the apparatus to a position adjacent to the one or more vials for attracting the magnetic particles; wherein the pipette head assembly has a pipette tip ejector for ejecting the one or more pipette tips from the pipette head assembly; and wherein the pipette tip ejector is operable by the magnetic rod.
    Type: Application
    Filed: September 4, 2008
    Publication date: May 7, 2009
    Inventors: Arne Deggerdal, Roland Norrman, Tomas Arnerdal, Erik Engwall, Jonas Astrom, Per-Ola Forsgren
  • Patent number: D442577
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: May 22, 2001
    Assignee: SMARTEQ Wireless AB
    Inventors: Johan Strand, Erik Engwall
  • Patent number: D443263
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: June 5, 2001
    Assignee: Smarteq Wireless AB
    Inventors: Johan Strand, Erik Engwall