Patents by Inventor Per Berdén

Per Berdén 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: 20110045505
    Abstract: The present invention relates to a device and a method for quantitative detecting of the presence or absence of a target analyte in a liquid sample having a volume of less than 200 ?l, the device comprising a reaction chamber in the form of a capillary channel, a first part comprising a sample inlet for the introduction of a sample containing an analyte, and a discharge outlet for the discharge of waste products; a second part comprising means for detection of the target analyte, and a solution inlet for introduction of washing solutions and reaction mixtures; and means for transferring an immobilized analyte from the first part to the second part of the chamber and vice versa, where the first and second parts are separated such that other liquid sample material may not enter the second part of the chamber and such that light may not be transferred from the first part of the chamber to the detector part of the second part of the chamber.
    Type: Application
    Filed: November 26, 2008
    Publication date: February 24, 2011
    Applicant: ATONOMICS A/S
    Inventors: Peter Warthoe, Soren Mentzel, Klaus Rune Andersen, Jens Mikkelsen, Jacob Holst Madsen, Per Berdén
  • Publication number: 20110008776
    Abstract: The present invention relates to a device and a method for quantitative detecting of the presence or absence of a target analyte in a liquid sample, the device comprising a reaction chamber having a volume of less than 200 ?l comprising an immobilization matrix capable of capturing the analyte, said immobilization matrix, preferably comprising a particulate magnetic material, having a size distribution that is at least bimodal.
    Type: Application
    Filed: November 26, 2008
    Publication date: January 13, 2011
    Applicant: Atonomics A/S
    Inventors: Peter Warthoe, Søren Mentzel, Klaus Rune Andersen, Jens Mikkelsen, Jacob Holst Madsen, Per Berdén
  • Publication number: 20100264099
    Abstract: The present invention relates to a device for separating a suspension into a liquid phase and a retentate phase. The device comprises a separation chamber comprising an application zone and a hydrophilic filter material. The separation chamber is connected to a first capillary channel, where the connecting junction between the separation chamber and the first capillary channel comprise a physical barrier preventing flow of residue retentate from a lower part of the chamber into the first capillary channel. The invention further relates to a method for separating a liquid sample consisting of less than 200 ?l suspension, into a retentate phase comprising the suspended matter, and a liquid phase substantially free of suspended matter.
    Type: Application
    Filed: November 26, 2007
    Publication date: October 21, 2010
    Applicant: ATONOMICS A/S
    Inventors: Peter Warthoe, Per Berdén
  • Publication number: 20070142325
    Abstract: Production of purified, parenterally administrable starch by washing starch containing more than 85% amylopectin in order to remove surface-localized proteins, lipids and endotoxins, subjecting the starch to a molecular weight reduction by acid hydrolysis, and optionally removing residual water-soluble proteins. Purified starch and microparticles based on such starch.
    Type: Application
    Filed: February 2, 2007
    Publication date: June 21, 2007
    Inventors: Nils Gustavsson, Monica Jonsson, Per Berden, Timo Laakso, Mats Reslow
  • Patent number: 7119195
    Abstract: Production of purified, parenterally administrable starch by washing starch containing more than 85% amylopectin in order to remove surface-localized proteins, lipids and endotoxins, dissolving the starch in aqueous medium, molecular weight reduction by shearing, and optionally removal of residual water-soluble proteins, preferably by anion exchange chromatography. Purified starch and microparticles based on such starch.
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: October 10, 2006
    Assignee: Jagotec AG
    Inventors: Nils Ove Gustavsson, Monica Jönsson, Per Berdén, Timo Laakso
  • Patent number: 6689389
    Abstract: Production of purified, parenterally administrable starch by washing starch containing more than 85% amylopectin in order to remove surface-localized proteins, lipids and endotoxins, dissolving the starch in aqueous medium, molecular weight reduction by shearing, and optionally removal of residual water-soluble proteins, preferably by anion exchange chromatography. Purified starch and microparticles based on such starch.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: February 10, 2004
    Assignee: Jagotec AG
    Inventors: Nils Ove Gustavsson, Monica Jönsson, Per Berdén, Timo Laakso, Mats Reslow
  • Publication number: 20040019014
    Abstract: Production of purified, parenterally administrable starch by washing starch containing more than 85% amylopectin in order to remove surface-localized proteins, lipids and endotoxins, dissolving the starch in aqueous medium, molecular weight reduction by shearing, and optionally removal of residual water-soluble proteins, preferably by anion exchange chromatography.
    Type: Application
    Filed: July 28, 2003
    Publication date: January 29, 2004
    Applicant: JAGOTEC AG.
    Inventors: Nils Ove Gustavsson, Monica Jonsson, Per Berden, Timo Laakso
  • Patent number: 6616948
    Abstract: Production of purified, parenterally administrable starch by washing starch containing more than 85% amylopectin in order to remove surface-localized proteins, lipids and endotoxins, subjecting the starch to a molecular weight reduction by acid hydrolysis, and optionally removing residual water-soluble proteins. Purified starch and microparticles based on such starch.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: September 9, 2003
    Assignee: Jagotec AG
    Inventors: Nils Ove Gustavsson, Monica Jönsson, Per Berdén, Timo Laakso, Mats Reslow
  • Publication number: 20020065411
    Abstract: Production of purified, parenterally administrable starch by washing starch containing more than 85% amylopectin in order to remove surface-localized proteins, lipids and endotoxins, subjecting the starch to a molecular weight reduction by acid hydrolysis, and optionally removing residual water-soluble proteins.
    Type: Application
    Filed: October 5, 2001
    Publication date: May 30, 2002
    Inventors: Nils Ove Gustavsson, Monica Jonsson, Per Berden, Timo Laakso, Mats Reslow
  • Publication number: 20020045745
    Abstract: Production of purified, parenterally administrable starch by washing starch containing more than 85% amylopectin in order to remove surface-localized proteins, lipids and endotoxins, dissolving the starch in aqueous medium, molecular weight reduction by shearing, and optionally removal of residual water-soluble proteins, preferably by anion exchange chromatography.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 18, 2002
    Inventors: Nils Ove Gustavsson, Monica Jonsson, Per Berden, Timo Laakso, Mats Reslow