Patents by Inventor Josef Grassl

Josef Grassl 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: 11442260
    Abstract: A system 100 and method are provided for imaging a sample in a sample holder. For providing autofocus, a 2D pattern is projected onto the sample holder 050 via an astigmatic optical element 120. Image data 172 of the sample is acquired by an image sensor 140 via magnification optics 150. A difference in sharpness of the two-dimensional pattern in the image data is measured along a first axis and a second axis. Based on the difference, a magnitude and direction of defocus of the camera subsystem is determined with respect to the sample holder. This enables the sample holder, and thereby the sample, to be brought into focus in a fast and reliable manner.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 13, 2022
    Assignee: TECAN TRADING AG
    Inventors: Andreas Erlbacher, Markus Schürf, Josef Grassl, Alexander Kaser
  • Publication number: 20210181223
    Abstract: A device for determining a position and/or an extension of a drop in a position determination space, where the device has a camera having an objective and a beam splitter in the recording area of the camera, and the device is designed in such a way that light coming from the position determination space can enter the objective of the camera along a first light path as well as along a second light path, where light along the first light path can be reflected at a first reflector element in the direction of the beam splitter and can be transmitted through the beam splitter towards the objective, and where light along the second light path can be reflected at a second reflector element in the direction of the beam splitter and can be reflected at the beam splitter towards the objective.
    Type: Application
    Filed: December 14, 2020
    Publication date: June 17, 2021
    Applicant: TECAN TRADING AG
    Inventors: Gerald ZERZA, Josef GRASSL, Alwin SCHULLER
  • Publication number: 20190049708
    Abstract: A system 100 and method are provided for imaging a sample in a sample holder. For providing autofocus, a 2D pattern is projected onto the sample holder 050 via an astigmatic optical element 120. Image data 172 of the sample is acquired by an image sensor 140 via magnification optics 150. A difference in sharpness of the two-dimensional pattern in the image data is measured along a first axis and a second axis. Based on the difference, a magnitude and direction of defocus of the camera subsystem is determined with respect to the sample holder. This enables the sample holder, and thereby the sample, to be brought into focus in a fast and reliable manner.
    Type: Application
    Filed: July 23, 2018
    Publication date: February 14, 2019
    Inventors: Andreas ERLBACHER, Markus SCHÜRF, Josef GRASSL, Alexander KASER
  • Patent number: 10180441
    Abstract: The invention relates to a microplate reader and a respective method, wherein the microplate reader comprises at least one measuring device and a holding device for accommodating at least one microplate and for positioning the samples-containing wells of this(these) microplate(s) in relation to the at least one measuring device. The at least one measuring device is used for detecting light which is emitted by samples in wells of a microplate inserted in this microplate reader and/or which is influenced by samples transilluminated by light in wells of a microplate inserted in this microplate reader. The microplate reader comprises a control unit for controlling the temperature of a gas atmosphere surrounding the wells containing the samples of microplates used in this microplate reader.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: January 15, 2019
    Assignee: TECAN TRADING AG
    Inventors: Florian Reiner, Harald Gebethsroither, Josef Grassl
  • Patent number: 9322784
    Abstract: A microplate reader and method has at least one measuring device and a holding device for accommodating at least one microplate and for positioning samples-containing wells of microplates in relation to the measuring device. The at least one measuring device is used for detecting light emitted by samples in wells of a microplate and/or which is influenced by samples transilluminated by light in the wells. The microplate reader has a control unit for controlling the composition of a gas atmosphere surrounding the wells containing the samples. A respective use is characterized particularly in that living cells are measured in a controlled gas atmosphere, wherein the living cells are chosen from microaerophilic, optionally anaerobic and obligatorily anaerobic microorganisms as well as fungi and eukaryotic cells.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: April 26, 2016
    Assignee: TECAN TRADING AG
    Inventors: Josef Grassl, Gerald Probst, Markus Schürf
  • Publication number: 20160018429
    Abstract: The invention relates to a microplate reader and a respective method, wherein the microplate reader comprises at least one measuring device and a holding device for accommodating at least one microplate and for positioning the samples-containing wells of this(these) microplate(s) in relation to the at least one measuring device. The at least one measuring device is used for detecting light which is emitted by samples in wells of a microplate inserted in this microplate reader and/or which is influenced by samples transilluminated by light in wells of a microplate inserted in this microplate reader. The microplate reader comprises a control unit for controlling the temperature of a gas atmosphere surrounding the wells containing the samples of microplates used in this microplate reader.
    Type: Application
    Filed: September 30, 2015
    Publication date: January 21, 2016
    Applicant: TECAN TRADING AG
    Inventors: Florian REINER, Harald GEBETHSROITHER, Josef GRASSL
  • Patent number: 8605279
    Abstract: Relates to a micro cuvette assembly (1), comprising a first partial plate (2) with one or more first cuvette surfaces (3) and a second partial plate (4) which is arrangeable relative to the first partial plate and has at least one or more second cuvette surfaces (5) which, in an active position of the micro cuvette assembly (1), are arranged in register plane-parallel to the first cuvette surfaces (3) and spaced apart by a distance (6), thus forming, in the active position of the micro cuvette assembly (1), one or more micro cuvettes (7) in which a liquid volume (8) applied previously to one of the cuvette surfaces (3,5) is held between these two cuvette surfaces (3,5).
    Type: Grant
    Filed: September 29, 2008
    Date of Patent: December 10, 2013
    Assignee: Tecan Trading AG
    Inventors: Walter Gotschy, Josef Grassl, Fritz Payr, Markus Schürf
  • Publication number: 20120064564
    Abstract: A microplate reader and method has at least one measuring device and a holding device for accommodating at least one microplate and for positioning samples-containing wells of microplates in relation to the measuring device. The at least one measuring device is used for detecting light emitted by samples in wells of a microplate and/or which is influenced by samples transilluminated by light in the wells. The microplate reader has a control unit for controlling the composition of a gas atmosphere surrounding the wells containing the samples. A respective use is characterized particularly in that living cells are measured in a controlled gas atmosphere, wherein the living cells are chosen from microaerophilic, optionally anaerobic and obligatorily anaerobic microorganisms as well as fungi and eukaryotic cells.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 15, 2012
    Inventors: JOSEF GRASSL, Gerald Probst, Markus Schürf
  • Publication number: 20110292383
    Abstract: Micro cuvette assembly for examining biological samples has a first partial plate with one or more first cuvette surfaces and a second partial plate opposite the first and which also has one or more second cuvette surfaces. In an active position of the assembly, the second cuvette surfaces are arranged parallel and in register with the first cuvette surfaces and are spaced apart from the first cuvette surfaces whereby one or more micro cuvettes are formed. The first and second partial plates also have openings arranged in register with the cuvette surfaces and transparent bodies are provided as the cuvette surfaces. The first and second plates are completely penetrated by these openings and the transparent bodies are manufactured from a different material than the partial plates and span the openings close to a first surface of the partial plates.
    Type: Application
    Filed: July 28, 2011
    Publication date: December 1, 2011
    Applicant: TECAN TRADING AG
    Inventors: Walter Gotschy, Josef Grassl, Fritz Payr, Markus Schürf
  • Publication number: 20090086198
    Abstract: Relates to a micro cuvette assembly (1), comprising a first partial plate (2) with one or more first cuvette surfaces (3) and a second partial plate (4) which is arrangeable relative to the first partial plate and has at least one or more second cuvette surfaces (5) which, in an active position of the micro cuvette assembly (1), are arranged in register plane-parallel to the first cuvette surfaces (3) and spaced apart by a distance (6), thus forming, in the active position of the micro cuvette assembly (1), one or more micro cuvettes (7) in which a liquid volume (8) applied previously to one of the cuvette surfaces (3,5) is held between these two cuvette surfaces (3,5).
    Type: Application
    Filed: September 29, 2008
    Publication date: April 2, 2009
    Inventors: Walter Gotschy, Josef Grassl, Fritz Payr, Markus Schurf
  • Patent number: 7425311
    Abstract: A holding device for at least one object carrier, the object carrier being suitable to receive one or more organic and/or inorganic samples and comprising materials such as glass, plastic, silicon, pyrolytic graphite, and/or metal, this holding device being configured to be gripped by grippers of a robot. The holding device comprising two essentially parallel lengthwise walls and two essentially parallel transverse walls which extend substantially at right angles from the lengthwise walls. Holding devices according to preferred embodiments are constructed in a frame shape, wherein the lengthwise and transverse walls define a frame surrounding at least one opening which completely transverses the device. Holding devices according to further embodiments are constructed a plate shape, in that the region between the lengthwise walls and transverse walls is implemented as a carrying surface. All embodiments comprising gripping surfaces on the external surface profile of the lengthwise and transverse walls.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: September 16, 2008
    Assignee: Tecan Trading AG
    Inventors: Andreas Gfrörer, Josef Grassl, Wolfgang Streit
  • Publication number: 20040013576
    Abstract: A holding device for at least one object carrier, the object carrier being suitable to receive one or more organic and/or inorganic samples and comprising materials such as glass, plastic, silicon, pyrolytic graphite, and/or metal, this holding device being configured to be gripped by grippers of a robot. The holding device comprising two essentially parallel lengthwise walls and two essentially parallel transverse walls which extend substantially at right angles from the lengthwise walls. Holding devices according to preferred embodiments are constructed in a frame shape, wherein the lengthwise and transverse walls define a frame surrounding at least one opening which completely traverses the device. Holding devices according to further embodiments are constructed a plate shape, in that the region between the lengthwise walls and transverse walls is implemented as a carrying surface. All embodiments comprising gripping surfaces on the external surface profile of the lengthwise and transverse walls.
    Type: Application
    Filed: June 18, 2003
    Publication date: January 22, 2004
    Inventors: Andreas Gfrorer, Josef Grassl, Wolfgang Streit
  • Patent number: 6659012
    Abstract: An ejection device for ejecting a plurality of submunitions (24a-d) having an adapter (10) including a control unit (12, 13, 14a-c, 15a-b, 16) and adapted for releasable fastening in an ejection barrel (2) of a discharger (1), and a submunitions cluster (20) including the submunitions and adapted for releasable connection, both mechanical and electrical, with the adapter. In the assembled condition of the device, the submunitions cluster is connected with the adapter, permitting submunitions to be ejected from the submunitions cluster. The control unit of the adapter controls the device to eject submunitions in one or more of a variety of ejection modes, such as sequentially one by one or at least in part simultaneously. The period between ejection of two consecutive submunitions may be adjustable. The ejection device may be integrated into a discharging unit including at least one discharger (1), such as a conventional discharging unit.
    Type: Grant
    Filed: March 8, 2000
    Date of Patent: December 9, 2003
    Assignee: Buck Neue Technologien GmbH
    Inventors: Josef Grassl, Ralf Heiduczek, Fritz Greindl, Martin Fegg