Patents by Inventor Tomas Lindstrom

Tomas Lindstrom 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: 12341783
    Abstract: A computer system including: one or more resource servers with resources, to which access is controlled in accordance with an access-control policy specified in a computer-readable access-control language, and a centralized authorization server, which is common to the resource servers and implements a second-type policy decision point. The computer system further includes a first-type policy decision point, which is implemented by the authorization server and configured to decide on dynamic policy privileges, and one or more second-type policy decision points, which are implemented by respective ones of the resource servers and configured to decide on static policy privileges.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: June 24, 2025
    Assignee: ABB Schweiz AG
    Inventors: Björn Leander, Tomas Lindstrom
  • Publication number: 20230254320
    Abstract: A computer system including: one or more resource servers with resources, to which access is controlled in accordance with an access-control policy specified in a computer-readable access-control language, and a centralized authorization server, which is common to the resource servers and implements a second-type policy decision point. The computer system further includes a first-type policy decision point, which is implemented by the authorization server and configured to decide on dynamic policy privileges, and one or more second-type policy decision points, which are implemented by respective ones of the resource servers and configured to decide on static policy privileges.
    Type: Application
    Filed: January 31, 2023
    Publication date: August 10, 2023
    Inventors: Björn Leander, Tomas Lindstrom
  • Publication number: 20220296477
    Abstract: The present invention relates to a particle composition comprising XRD amorphous calcium magnesium phosphate particles and a method for manufacturing such a composition. The XRD amorphous calcium magnesium phosphate particles are spherical particles with a hollow core. The particle-containing paste may be used in dental products such as toothpaste to treat dentin hypersensitivity by mineralizing and occluding exposed dentin tubules.
    Type: Application
    Filed: October 23, 2020
    Publication date: September 22, 2022
    Applicant: PSILOX AB
    Inventors: Erik UNOSSON, Tomas LINDSTRÖM
  • Patent number: 9279768
    Abstract: A fluorescence reader for an optical assay arrangement that includes a polymeric sample substrate having a reaction site-surface and a substrate surface. The fluorescence reader includes a light source arranged to illuminate the reaction site-surface through the substrate surface, and a detector device arranged to detect fluorescent light emitted from the reaction site-surface and transmitted through the substrate surface, the substrate surface being configured to increase transmission of emitted fluorescent light by suppression of total internal reflection.
    Type: Grant
    Filed: March 31, 2014
    Date of Patent: March 8, 2016
    Assignee: JOHNSON & JOHNSON AB
    Inventors: Tomas Lindstrom, Ib Mendel-Hartvig, Ove Öhman, Johan Backlund, Kennet Vilhelmsson
  • Publication number: 20140212984
    Abstract: A fluorescence reader for an optical assay arrangement that includes a polymeric sample substrate having a reaction site-surface and a substrate surface. The fluorescence reader includes a light source arranged to illuminate the reaction site-surface through the substrate surface, and a detector device arranged to detect fluorescent light emitted from the reaction site-surface and transmitted through the substrate surface, the substrate surface being configured to increase transmission of emitted fluorescent light by suppression of total internal reflection.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: Johnson & Johnson AB
    Inventors: Tomas Lindstrom, Ib Mendel-Hartvig, Ove Öhman, Johan Backlund, Kennet Vilhelmsson
  • Patent number: 8759115
    Abstract: An assay device for performing an assay on a liquid sample using a detection conjugate capable of binding to an antigen and containing a label. The device includes a substrate surface having a sample addition zone, a reaction zone and an absorbing zone, the zones being connected by at least one fluid passage, wherein the device has a first functionality verifying feature located between the sample addition zone and the reaction zone, and a second functionality verifying feature located within the absorbing zone. Both functionality verifying features are capable of undergoing a detectable change when contacted by the sample, in which the assay device further includes at least one alignment verification zone. There is further provided a kit of parts and a method of conducting an assay.
    Type: Grant
    Filed: December 12, 2012
    Date of Patent: June 24, 2014
    Assignee: Johnson & Johnson AB
    Inventors: Per Ove Ohman, Ib Mendel-Hartvig, Tomas Lindstrom
  • Patent number: 8691153
    Abstract: A fluorescence reader for an optical assay arrangement includes a polymeric sample substrate having a reaction site-surface and a substrate surface. A light source is arranged to illuminate the reaction site-surface through the substrate surface, and a detector device is arranged to detect fluorescent light emitted from the reaction site-surface and transmitted through the substrate surface, the substrate surface provided, for example, as a light-collecting body to allow fluorescent light rays exceeding a critical emission angle for total internal reflection to escape the substrate and enter the body.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: April 8, 2014
    Assignee: Johnson & Johnson AB
    Inventors: Tomas Lindstrom, Ib Mendel-Hartvig, Ove Öhman, Johan Backlund, Kennet Vilhelmsson
  • Patent number: 8343439
    Abstract: The present invention provides an assay device for performing an assay on a liquid sample using a detection conjugate capable of binding to an antigen and containing a label, said device comprising a substrate having a substrate surface, wherein the surface comprises projections substantially perpendicular to said surface, said projections having a height, diameter and distance capable of generating lateral capillary flow of a fluid in said passage, said surface comprising a sample addition zone, a reaction zone and an absorbing zone, said zones being connected by at least one fluid passage, wherein said device has a first functionality verifying feature located between the sample addition zone and the reaction zone, and a second functionality verifying feature located within the absorbing zone, and both functionality verifying features being features capable of undergoing a detectable change when contacted by the sample, said assay device further comprising at least one alignment verification zone.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: January 1, 2013
    Assignee: AMIC AB
    Inventors: Per Ove Öhman, Ib Mendel-Hartvig, Tomas Lindström
  • Publication number: 20110306519
    Abstract: In combination, a polymeric microarray support for an optical assay arrangement, that includes an optical detection instrument having a known depth of focus for detecting light emitted from said microarray support. The polymeric microarray support has a support surface made from a polymeric support material having a thickness varying over the area of the support surface by a thickness variation value. The said support includes formed microfeatures made up of grooves arranged to have a predetermined depth at the time of forming, the groove depth being selected based on the depth of focus of the optical detection instrument and the thickness of the support. The sum of the depth for the grooves and the thickness variation value of the polymeric support surface substantially corresponds to the depth of focus of the optical detection instrument in order to reduce noise, the polymeric support surface having attached thereto probe molecules to form binding sites.
    Type: Application
    Filed: July 8, 2011
    Publication date: December 15, 2011
    Applicant: Amic AB
    Inventors: Tomas Lindstrom, Ove Ohman
  • Patent number: 8000001
    Abstract: The invention comprises a polymeric microarray support (1) for an optical assay arrangement (2) comprising optical means (3, 4, 6) for detection of light emitted from the support. The microarray support is provided with microfeatures comprising a surface enlarging pattern (5), i.e. grooves having a selected depth (8). The depth is selected such that the sum of the depth and of the variations in the thickness (7) of the support substantially corresponds to the depth of focus of the optical means.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: August 16, 2011
    Assignee: Amic AB
    Inventors: Tomas Lindström, Ove Öhman
  • Patent number: 7829799
    Abstract: Manufacturing of miniaturised three-dimensional electric components are presented, as well as components manufactured by the methods. The manufacturing methods comprise micro-replication of at least one master structure, e.g. via a mould structure, in at least one polymer layer onto which layer at least one conductive path is provided.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: November 9, 2010
    Assignee: Nokia Corporation
    Inventors: Tapani Ryhänen, Hans Otto Scheck, Ove Öhman, Olle Larsson, Michael Read, Tomas Lindström
  • Publication number: 20100041154
    Abstract: The present invention provides an assay device for performing an assay on a liquid sample using a detection conjugate capable of binding to an antigen and containing a label, said device comprising a substrate having a substrate surface, wherein the surface comprises projections substantially perpendicular to said surface, said projections having a height, diameter and distance capable of generating lateral capillary flow of a fluid in said passage, said surface comprising a sample addition zone, a reaction zone and an absorbing zone, said zones being connected by at least one fluid passage, wherein said device has a first functionality verifying feature located between the sample addition zone and the reaction zone, and a second functionality verifying feature located within the absorbing zone, and both functionality verifying features being features capable of undergoing a detectable change when contacted by the sample, said assay device further comprising at least one alignment verification zone.
    Type: Application
    Filed: June 20, 2007
    Publication date: February 18, 2010
    Applicant: AMIC AB
    Inventors: Per Ove Öhman, Ib Mendel-Hartvig, Tomas Lindström
  • Patent number: 7564045
    Abstract: An optical reader for an optical assay arrangement including a polymeric sample substrate having a reaction-site surface provided with protruding microstructures and at least one reaction-site area; a light source for illuminating the reaction-site area; and a detector device for detecting light emitted from the reaction-site area. The light source is arranged to inject exciting light rays into the polymeric sample substrate with a controlled angle of incidence such that the protruding microstructures guide the exciting light rays in the direction of the reaction-site area, and the detector device detects light emitted from the at least one reaction-site area.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: July 21, 2009
    Assignee: AMIC AB
    Inventors: Per Ove Ohman, Tomas Lindstrom, Ib Mendel-Hartvig
  • Publication number: 20070267217
    Abstract: Manufacturing of miniaturised three-dimensional electric components are presented, as well as components manufactured by the methods. The manufacturing methods comprise micro-replication of at least one master structure, e.g. via a mould structure, in at least one polymer layer onto which layer at least one conductive path is provided.
    Type: Application
    Filed: July 31, 2007
    Publication date: November 22, 2007
    Inventors: Tapani Ryhanen, Hans Scheck, Ove Ohman, Olle Larsson, Michael Read, Tomas Lindstrom
  • Publication number: 20070231883
    Abstract: Fluorescence reader (10) for an optical assay arrangement comprising a polymeric sample substrate (1) having a reaction site-surface and a substrate surface (3), the fluorescence reader comprising a light source (5) arranged to illuminate the reaction site-surface through the substrate surface, and a detector device (6) arranged to detect fluorescent light emitted from said reaction site-surface and transmitted through the substrate surface, the substrate surface provided with total-internal-reflection suppressing means (15).
    Type: Application
    Filed: March 22, 2007
    Publication date: October 4, 2007
    Applicant: Amic AB
    Inventors: Tomas Lindstrom, Ib Mendel-Hartvig, Ove Ohman, Johan Backlund, Kennet Vilhelmsson
  • Patent number: 7266882
    Abstract: Manufacturing of miniaturized three-dimensional electric components are presented, as well as components manufactured by the methods. The manufacturing methods comprise micro-replication of at least one master structure, e.g. via a mould structure, in at least one polymer layer onto which layer at least one conductive path is provided.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: September 11, 2007
    Assignees: Nokia Corporation, Amic AB
    Inventors: Tapani Ryhanen, Hans Otto Scheck, Ove Öhman, Olle Larsson, Mike Read, Tomas Lindström
  • Publication number: 20070065935
    Abstract: The invention comprises a polymeric microarray support (1) for an optical assay arrangement (2) comprising optical means (3, 4, 6) for detection of light emitted from the support. The microarray support is provided with microfeatures comprising a surface enlarging pattern (5), i.e. grooves having a selected depth (8). The depth is selected such that the sum of the depth and of the variations in the thickness (7) of the support substantially corresponds to the depth of focus of the optical means.
    Type: Application
    Filed: May 18, 2004
    Publication date: March 22, 2007
    Applicant: Amic AB
    Inventors: Tomas Lindstrom, Ove Ohman
  • Publication number: 20060289787
    Abstract: Optical reader (33, 43, 53, 63, 73, 83) for an optical assay arrangement comprising a polymeric sample substrate (1) having a reaction site-area (5) provided with protruding microstructures (2), the optical reader comprising a light source (6, 11) for illuminating the reaction site-area (5), and a detector device (7, 12) for detecting light emitted from said reaction site-area.
    Type: Application
    Filed: June 15, 2006
    Publication date: December 28, 2006
    Applicant: Amic AB
    Inventors: Per Ohman, Tomas Lindstrom, Ib Mendel-Hartvig
  • Publication number: 20040195000
    Abstract: Manufacturing of miniaturised three-dimensional electric components are presented, as well as components manufactured by the methods. The manufacturing methods comprise micro-replication of at least one master structure, e.g. via a mould structure, in at least one polymer layer onto which layer at least one conductive path is provided.
    Type: Application
    Filed: May 18, 2004
    Publication date: October 7, 2004
    Inventors: Tapani Ryhanen, Hans Otto Scheck, Ove Ohman, Olle Larsson, Michael Read, Tomas Lindstrom