Patents by Inventor Steven T. Krueger

Steven T. Krueger 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: 7891549
    Abstract: A biological sample processing apparatus having a central processing unit, a display in communication with the central processing unit and a selector for selecting a personality type of the apparatus, the selector being in communication with the central processing apparatus. The selection of a personality type prompts the central processing unit to cause the display to show a list of preprogrammed protocols for biological sample processing that correspond to the selected personality type.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: February 22, 2011
    Assignee: Promega Corporation
    Inventors: Michael P. Bjerke, Steven T. Krueger, Louis Mezei
  • Publication number: 20100191476
    Abstract: A biological sample processing apparatus having a central processing unit, a display in communication with the central processing unit and a selector for selecting a personality type of the apparatus, the selector being in communication with the central processing apparatus. The selection of a personality type prompts the central processing unit to cause the display to show a list of preprogrammed protocols for biological sample processing that correspond to the selected personality type.
    Type: Application
    Filed: April 13, 2010
    Publication date: July 29, 2010
    Inventors: Michael P. Bjerke, Steven T. Krueger, Louis Mezei
  • Patent number: 7721947
    Abstract: A biological sample processing apparatus having a central processing unit, a display in communication with the central processing unit and a selector for selecting a personality type of the apparatus, the selector being in communication with the central processing apparatus. The selection of a personality type prompts the central processing unit to cause the display to show a list of preprogrammed protocols for biological sample processing that correspond to the selected personality type.
    Type: Grant
    Filed: June 15, 2007
    Date of Patent: May 25, 2010
    Assignee: Promega Corporation
    Inventors: Michael P. Bjerke, Steven T. Krueger, Louis Mezei
  • Publication number: 20090272694
    Abstract: A biological sample processing apparatus and method of use thereof. The biological sample processing apparatus includes a rod-shaped magnet having a north pole, a south pole, a length and a width, and a plunger covering the magnet. The north pole and the south pole of the rod-shaped magnet are substantially orthogonal to the length of the rod-shaped magnet. The apparatus separates magnetic particles from a solution containing, for example, a biological sample.
    Type: Application
    Filed: July 13, 2009
    Publication date: November 5, 2009
    Applicant: PROMEGA CORPORATION
    Inventor: Steven T. Krueger
  • Publication number: 20080083291
    Abstract: A biological sample processing apparatus and method of use thereof. The biological sample processing apparatus includes a rod-shaped magnet having a north pole, a south pole, a length and a width, and a plunger covering the magnet. The north pole and the south pole of the rod-shaped magnet are substantially orthogonal to the length of the rod-shaped magnet. The apparatus separates magnetic particles from a solution containing, for example, a biological sample.
    Type: Application
    Filed: October 4, 2007
    Publication date: April 10, 2008
    Applicant: Promega Corporation
    Inventor: Steven T. Krueger
  • Patent number: 6660232
    Abstract: A multi-well plate and plate holder assembly comprising a multi-well assay plate clamped between an upper plate holder and a lower plate holder to facilitate handling of the plate, and to prevent the plate from warping when liquid samples placed within wells of the multi-well assay plate are stored, analyzed and/or subjected to a reaction or other process, particularly when the samples are subjected to high temperatures. The upper plate holder is releasably engageable with the lower plate holder. Preferably, at least one detent positions and holds the upper plate holder in relation to the lower plate holder.
    Type: Grant
    Filed: September 29, 2000
    Date of Patent: December 9, 2003
    Assignee: Promega Corporation
    Inventors: Steven T. Krueger, Paul E. Otto, Julia E. Krueger
  • Publication number: 20020070173
    Abstract: An apparatus and method for use in magnetic separation of magnetically attractable particles suspended in a liquid. The apparatus includes a magnetic separator plate having a plurality of channels, one for each column of wells of a multi-well assay plate which is received by the magnetic separator plate. A plurality of magnets are positioned in each channel so that when the magnetic separator plate receives the multi-well assay plate, the magnets attract the magnetically attractable particles to create a pellet of material of a substance of interest on a side wall within each associated well.
    Type: Application
    Filed: December 8, 2000
    Publication date: June 13, 2002
    Applicant: Promega Corporation, Madison, Wisconsin
    Inventors: Paul E. Otto, Steven T. Krueger, Michael P. Bjerke, Julia E. Krueger
  • Patent number: 6193892
    Abstract: Provided are a magnetic particle separation assembly and method for separating a magnetically responsive complex from a non-magnetic test media in which the magnetically responsive complex is suspended. The assembly comprises an invertible rack for holding specimen containers and a magnetic support member for supporting the rack. The magnetic support member has a base and a planar member bisecting the base and extending upwardly therefrom. The planar vertical member has a plurality of magnets embedded therein. The magnets are disposed in a substantially horizontal orientation parallel to the base and spaced from the base. The invertible rack has a slot therethrough dimensioned to accept the planar vertical member of the magnetic support member. In one position, at least one container of a particular size is positioned within the rack so as to be adjacent to the magnetic support member in final assembly such that the magnetically responsive complex is separated from the non-magnetic media.
    Type: Grant
    Filed: March 3, 1999
    Date of Patent: February 27, 2001
    Assignee: Promega Corporation
    Inventors: Julia E. Krueger, Steven T. Krueger, Cheryl M. Luedtke