Patents by Inventor Vinh Duong

Vinh Duong 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: 8672538
    Abstract: The invention relates to a tempering apparatus for tempering a sample comprising: at least one tempering block configured for receiving at least one sample, at least one tempering device arranged for tempering the tempering block, at least one temperature measurement device assigned to the tempering device, at least one control loop to which the tempering device and temperature measurement device are assigned to, at least one control device configured for control of the tempering of the tempering block, wherein the tempering apparatus comprises at least two temperature measurement devices assigned to the control loop, and that to the tempering apparatus a testing device for performing a test method is assigned to, wherein the testing device comprises a signal-connection to at least one of the at least two temperature measurement devices, such that at least one testing quantity of the tempering apparatus is detectable, which characterizes the operational status of the tempering apparatus.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: March 18, 2014
    Assignee: Eppendorf AG
    Inventors: Lutz Timmann, Vinh Duong, Stefan Roth, Thomas Uschkureit, Jurgen Koeppel, Thomas Buck, Michael Wild
  • Patent number: 8652835
    Abstract: A device for mechanically decollating cells from a cell composite, particularly a shear rotor, a cell isolation unit including such a shear rotor and a method for decollating cells from a cell composite. The aforementioned device includes a rotor having a rotor wall, which is concentrically arranged in a receptacle. A rotor seat is connected to a motor and to which the rotor can be fixed in a detachable manner. A rotational movement of the motor can be transmitted to the rotor by means of the rotor seat. The rotor tapers longitudinally towards the bottom of the receptacle so that different circumferential speeds of the rotor can be transmitted to a liquid sample in the receptacle via the rotor wall.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: February 18, 2014
    Assignee: Eppendorf AG
    Inventors: Holger Link, Alexander Papra, Michael Blumentritt, Vinh Duong
  • Patent number: 8322918
    Abstract: The invention relates to a method for testing of a tempering apparatus, wherein the method comprises the following steps: starting of the method; operation of at least said first tempering device for the duration of at least one first period from at least one first time; detection of at least one measurement temperature from said at least one first temperature measurement device, which is assigned to said first tempering device, at least at a second time; determining at least one first testing quantity of the tempering apparatus by using said at least one measurement temperature; and comparison of said first testing quantity with one reference quantity.
    Type: Grant
    Filed: August 3, 2009
    Date of Patent: December 4, 2012
    Assignee: Eppendorf AG
    Inventors: Lutz Timmann, Vinh Duong, Stefan Roth, Thomas Uschkureit, Jurgen Koeppel, Thomas Buck, Michael Wild
  • Publication number: 20100150203
    Abstract: The invention relates to a tempering apparatus for the execution of a tempering program for at least one sample, in particular PCR-sample, comprising: at least one tempering block, which is configured for the reception of at least one sample, at least one tempering device, which is arranged for tempering said at least one tempering block, at least one temperature measurement device, which is assigned to said tempering device, at least one control loop for the regulation of a temperature, to which at least one tempering device and at least one temperature measurement device, which is assigned to said at least one tempering device, are assigned to, at least one control device, which is configured for the control of the tempering of the at least one tempering block, wherein the tempering apparatus comprises at least two temperature measurement devices, which are assigned to at least one control loop, and that to the tempering apparatus a testing device for performing a test method is assigned to, wherein said te
    Type: Application
    Filed: August 3, 2009
    Publication date: June 17, 2010
    Applicant: Eppendorf AG
    Inventors: Lutz TIMMANN, Vinh Duong, Stefan Roth, Thomas Uschkureit, Jürgen Koeppel, Thomas Buck, Michael Wild
  • Publication number: 20100087003
    Abstract: A device for mechanically decollating cells from a cell composite, particularly a shear rotor, a cell isolation unit including such a shear rotor and a method for decollating cells from a cell composite. The aforementioned device includes a rotor having a rotor wall, which is concentrically arranged in a receptacle. A rotor seat is connected to a motor and to which the rotor can be fixed in a detachable manner. A rotational movement of the motor can be transmitted to the rotor by means of the rotor seat. The rotor tapers longitudinally towards the bottom of the receptacle so that different circumferential speeds of the rotor can be transmitted to a liquid sample in the receptacle via the rotor wall.
    Type: Application
    Filed: January 31, 2008
    Publication date: April 8, 2010
    Applicant: Eppendorf AG
    Inventors: Holger Link, Alexander Papra, Michael Blumentritt, Vinh Duong
  • Patent number: 7060488
    Abstract: A configuration of mini-volume reaction receptacles (1, 16, 41) of which the receptacle housings (2, 17) each enclose an elongated chamber (3, 18, 42) of which the ends are connected to apertures (6, 7, 20, 22) formed in the receptacle housing. The receptacle housings have identical base surfaces and have a small height relative to the base surface, and are stacked on one another while their base surfaces are mutually aligned. At least one aperture of a receptacle housing communicates with at least one aperture of a vertically adjacent receptacle housing, as seen in the direction of stacking. The receptacles (1, 16, 41) are mechanically interlocked in a direction transverse to the direction of stacking and can be plugged one into another. Each receptacle housing defines at least one aperture (6, 7, 22) at its top side that is accessible to a pipette.
    Type: Grant
    Filed: January 28, 2003
    Date of Patent: June 13, 2006
    Assignee: Eppendorf AG
    Inventors: Vinh Duong, Andreas Graff, Cordula Kroll, Werner Lurz, Melanie Persson, Andreas Schirr, Wilhelm Pluster, Lutz Timmann
  • Publication number: 20030148504
    Abstract: A configuration of mini-volume reaction receptacles (1, 16, 41) of which the housings (2, 17) each enclose an elongated chamber (3, 18, 42) of which the ends are connected to apertures (6, 7, 20, 22) of the particular housing, said housings exhibiting the same base surfaces and being of low height compared to the base surface and are stacked one on another while their base surfaces are mutually aligned, at least one aperture of a receptacle communicating with at least one aperture of a consecutive receptacle as seen in the direction of stacking, said configuration being characterized in that the receptacles (1, 16, 41) are mechanically interlocked in the direction transverse to the direction of stacking and can be plugged one into another, and each receptacle comprises at least one aperture (6, 7, 22) accessible to a pipette at its top side.
    Type: Application
    Filed: January 28, 2003
    Publication date: August 7, 2003
    Applicant: EPPENDORF AG
    Inventors: Vinh Duong, Andreas Graff, Cordula Kroll, Werner Lurz, Melanie Persson, Andreas Schirr, Wilhelm Pluster, Lutz Timmann