Patents by Inventor Frans Ejner Ravn

Frans Ejner Ravn 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: 10921234
    Abstract: The present invention relates to methods and systems for image cytometry analysis, typically at low optical magnification, where analysis is based on detection of biological particles using UV bright field and optionally one or more sources of excitation light.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: February 16, 2021
    Assignee: CHEMOMETEC A/S
    Inventors: Martin Glensbjerg, Johan Holm, Søren Kjærulff, Frans Ejner Ravn Hansen
  • Patent number: 10697884
    Abstract: The present invention relates to methods and systems for image cytometry analysis, in particular using light sources to be cooled. Thereby is provided optimal light conditions for image cytometry.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: June 30, 2020
    Assignee: ChemoMetec A/S
    Inventors: Martin Glensbjerg, Johan Holm, Søren Kjaerulff, Frans Ejner Ravn Hansen
  • Patent number: 10458896
    Abstract: The present invention relates to methods and systems for image cytometry analysis, typically at low optical magnification, where analysis is based on detection of biological particles using UV bright field, dark field or one or more sources of excitation light. The system comprises illumination means (11, 112), a sample holder (100), a sample compartment (101), imaging means (120), collection means (121), light modulation means (122, 123), and detection means (130) with active detection elements (131).
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: October 29, 2019
    Assignee: ChemoMetec A/S
    Inventors: Martin Glensbjerg, Johan Holm, Søren Kjaerulff, Frans Ejner Ravn Hansen
  • Publication number: 20190323944
    Abstract: The present invention relates to methods and systems for image cytometry analysis, typically at low optical magnification, where analysis is based on detection of biological particles using UV bright field and optionally one or more sources of excitation light.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: Martin Glensbjerg, Johan Holm, Søren Kjærulff, Frans Ejner Ravn Hansen
  • Patent number: 10254223
    Abstract: According to an embodiment of the invention, an apparatus to detect fluorescence from a sample is disclosed. The apparatus comprises a sample plane onto which the sample is arranged, an excitation light unit including at least a light source to illuminate the sample, and a detection unit comprising at least a detector having at least 100,000 active detection elements to detect a fluorescence signal from the sample.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: April 9, 2019
    Assignee: ChemoMetec A/S
    Inventors: Søren Kjaerulff, Mette Elena Skinderso, Helle Frobose Sorensen, Frans Ejner Ravn, Martin Glensbjerg
  • Publication number: 20180195958
    Abstract: According to an embodiment of the invention, an apparatus to detect fluorescence from a sample is disclosed. The apparatus comprises a sample plane onto which the sample is arranged, an excitation light unit including at least a light source to illuminate the sample, and a detection unit comprising at least a detector having at least 100,000 active detection elements to detect a fluorescence signal from the sample.
    Type: Application
    Filed: January 25, 2018
    Publication date: July 12, 2018
    Inventors: Søren Kjaerulff, Mette Elena Skinderso, Helle Frobose Sorensen, Frans Ejner Ravn, Martin Glensbjerg
  • Patent number: 9903819
    Abstract: According to an embodiment of the invention, an apparatus to detect fluorescence from a sample is disclosed. The apparatus comprises a sample plane onto which the sample is arranged, an excitation light unit including at least a light source to illuminate the sample, and a detection unit comprising at least a detector having at least 100,000 active detection elements to detect a fluorescence signal from the sample.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: February 27, 2018
    Assignee: ChemoMetec A/S
    Inventors: Søren Kjaerulff, Mette Elena Skinderso, Helle Frobose Sorensen, Frans Ejner Ravn, Martin Glensbjerg
  • Publication number: 20170261419
    Abstract: The present invention relates to methods and systems for image cytometry analysis, in particular using light sources to be cooled. Thereby is provided optimal light conditions for image cytometry.
    Type: Application
    Filed: December 3, 2015
    Publication date: September 14, 2017
    Inventors: Martin Glensbjerg, Johan Holm, Søren Kjaerulff, Frans Ejner Ravn Hansen
  • Publication number: 20160103058
    Abstract: The present invention relates to methods and systems for image cytometry analysis, typically at low optical magnification, where analysis is based on detection of biological particles using UV bright field, dark field or one or more sources of excitation light. The system comprises illumination means (11, 112), a sample holder (100), a sample compartment (101), imaging means (120), collection means (121), light modulation means (122, 123), and detection means (130) with active detection elements (131).
    Type: Application
    Filed: May 28, 2014
    Publication date: April 14, 2016
    Inventors: Martin Glensbjerg, Johan Holm, Søren Kjaerulff, Frans Ejner Ravn Hansen
  • Patent number: 9224031
    Abstract: The invention relates to image analysis of dark field images obtained at low magnification below 10:1. Image analysis of dark field images obtained at low magnification can be combined with analyzes of images obtained in respect of the same section of a sample and same magnification but with other techniques such as fluorescent microscopy. The system and method can be used e.g. for particle counting, particle size measurement, particle size distribution, morphology measurement, where the particles can be cells and/or cell parts. The invention also relates to a compact dark field light source unit, a system or apparatus including a microscope which by itself is compact and comprises the mentioned dark field light source unit.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: December 29, 2015
    Assignee: ChemoMetec A/S
    Inventors: Martin Glensbjerg, Johan Christer Holm, Frans Ejner Ravn, Søren Kjaerulff
  • Publication number: 20150053872
    Abstract: According to an embodiment of the invention, an apparatus to detect fluorescence from a sample is disclosed. The apparatus comprises a sample plane onto which the sample is arranged, an excitation light unit including at least a light source to illuminate the sample, and a detection unit comprising at least a detector having at least 100,000 active detection elements to detect a fluorescence signal from the sample.
    Type: Application
    Filed: August 29, 2014
    Publication date: February 26, 2015
    Inventors: Søren Kjaerulff, Mette Elena Skinderso, Helle Frobose Sorensen, Frans Ejner Ravn, Martin Glensbjerg
  • Patent number: 8860938
    Abstract: According to an embodiment of the invention, an apparatus to detect fluorescence from a sample is disclosed. The apparatus comprises a sample plane onto which the sample is arranged, an excitation light unit including at least a light source to illuminate the sample, and a detection unit comprising at least a detector having at least 100,000 active detection elements to detect a fluorescence signal from the sample.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: October 14, 2014
    Assignee: ChemoMetec A/S
    Inventors: Søren Kjærulff, Mette Elena Skindersø, Helle Frobøse Sørensen, Frans Ejner Ravn, Martin Glensbjerg
  • Publication number: 20130129181
    Abstract: The invention relates to image analysis of dark field images obtained at low magnification below 10:1. Image analysis of dark field images obtained at low magnification can be combined with analyses of images obtained in respect of the same section of a sample and same magnification but with other techniques such as fluorescent microscopy. The system and method can be used e.g. for particle counting, particle size measurement, particle size distribution, morphology measurement, where the particles can be cells and/or cell parts. The invention also relates to a compact dark field light source unit, a system or apparatus including a microscope which by itself is compact and comprises the mentioned dark field light source unit.
    Type: Application
    Filed: May 18, 2011
    Publication date: May 23, 2013
    Applicant: CHEMOMETEC A/S
    Inventors: Martin Glensbjerg, Johan Christer Holm, Frans Ejner Ravn, Søren Kjaerulff
  • Patent number: 8432550
    Abstract: A method for the assessment of quantity and quality parameters of biological particles in a liquid analyte material. The method comprises applying a volume of a liquid sample to an exposing domain from which exposing domain electromagnetic signals from the sample in the domain can pass to the exterior, and exposing, onto an array of active detection elements such as CCD-elements, a spatial representation of electromagnetic signals having passed from the domain, the representation being detectable as an intensity by individual active detection elements, under conditions permitting processing of the intensities detected by the array of detection elements during the exposure in such a manner that representations of electromagnetic signals from the biological particles are identified as distinct from representations of electromagnetic signals from background signals.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: April 30, 2013
    Assignee: ChemoMetec A/S
    Inventors: Frans Ejner Ravn Hansen, Martin Glensbjerg, Börkur Arnvidarson, Jesper Myron Jeppesen
  • Patent number: 8363221
    Abstract: The present invention relates to a method for the assessment of quantity and quality parameters of biological particles in a liquid analyte material. The method comprises applying a volume of a liquid sample to an exposing domain from which exposing domain electromagnetic signals from the sample in the domain can pass to the exterior, and exposing, onto an array of active detection elements such as CCD-elements, a spatial representation of electromagnetic signals having passed from the domain, the representation being detectable as an intensity by individual active detection elements, under conditions permitting processing of the intensities detected by the array of detection elements during the exposure in such a manner that representations of electromagnetic signals from the biological particles are identified as distinct from representations of electromagnetic signals from background signals.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: January 29, 2013
    Assignee: Chemometec A/S
    Inventors: Frans Ejner Ravn Hansen, Martin Glensbjerg, Borkur Arnvidarson, Jesper Myron Jeppesen
  • Patent number: 8125643
    Abstract: The present invention relates to a method for the assessment of quantity and quality parameters of biological particles in a liquid analyte material. The method comprises applying a volume of a liquid sample to an exposing domain from which exposing domain electromagnetic signals from the sample in the domain can pass to the exterior, and exposing, onto an array of active detection elements such as CCD-elements, a spatial representation of electromagnetic signals having passed from the domain, the representation being detectable as an intensity by individual active detection elements, under conditions permitting processing of the intensities detected by the array of detection elements during the exposure in such a manner that representations of electromagnetic signals from the biological particles are identified as distinct from representations of electromagnetic signals from background signals.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: February 28, 2012
    Assignee: Chemometec A/S
    Inventors: Frans Ejner Ravn Hansen, Martin Glensbjerg, Borkur Arnvidarson, Jesper Myron Jeppesen
  • Publication number: 20120045757
    Abstract: According to an embodiment of the invention, an apparatus to detect fluorescence from a sample is disclosed. The apparatus comprises a sample plane onto which the sample is arranged, an excitation light unit including at least a light source to illuminate the sample, and a detection unit comprising at least a detector having at least 100,000 active detection elements to detect a fluorescence signal from the sample.
    Type: Application
    Filed: October 21, 2009
    Publication date: February 23, 2012
    Inventors: Søren Kjaerulff, Mette Elena Skindersø, Helle Frobøse Sørensen, Frans Ejner Ravn, Martin Glensbjerg
  • Patent number: 8081312
    Abstract: The present invention relates to a method for the assessment of quantity and quality parameters of biological particles in a liquid analyte material. The method comprises applying a volume of a liquid sample to an exposing domain from which exposing domain electromagnetic signals from the sample in the domain can pass to the exterior, and exposing, onto an array of active detection elements such as CCD-elements, a spatial representation of electromagnetic signals having passed from the domain, the representation being detectable as an intensity by individual active detection elements, under conditions permitting processing of the intensities detected by the array of detection elements during the exposure in such a manner that representations of electromagnetic signals from the biological particles are identified as distinct from representations of electromagnetic signals from background signals.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: December 20, 2011
    Assignee: Chemometec A/S
    Inventors: Frans Ejner Ravn Hansen, Martin Glensbjerg, Borkur Arnvidarson, Jesper Myron Jeppesen
  • Patent number: 6970246
    Abstract: The present invention relates to an apparatus and a method for detecting the fluorescence of a sample, wherein the apparatus comprises excitation light source located on the same side of the sample as the detecting means. The apparatus may be constructed as a single-sided as well as a double-sided system, wherein the double-sided system comprises double-sided excitation system and/or double-sided detecting system. The double-sided system may also be a combination of fluorescence system and conventional microscopy. The apparatus may be used for analysis of various types of biological material, liquid as well as solid material, and various other types of material suitable being analysed through fluorescence studies.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: November 29, 2005
    Assignee: ChemoMetec A/S
    Inventor: Frans Ejner Ravn Hansen
  • Publication number: 20040061070
    Abstract: The present invention relates to an apparatus and a method for detecting the fluorescence of a sample, wherein the apparatus comprises excitation light source located on the same side of the sample as the detecting means. The apparatus may be constructed as a single-sided as well as a double-sided system, wherein the double-sided system comprises double-sided excitation system and/or double-sided detecting system. The double-sided system may also be a combination of fluorescence system and conventional microscopy. The apparatus may be used for analysis of various types of biological material, liquid as well as solid material, and various other types of material suitable being analysed through fluorescence studies.
    Type: Application
    Filed: October 10, 2002
    Publication date: April 1, 2004
    Inventor: Frans Ejner Ravn Hansen