Patents by Inventor Guenter Pradel

Guenter Pradel 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: 9636644
    Abstract: Aeration device for bioreactors with a first aeration element with gas outlet openings of a first size and with at least one second aeration element with gas outlet openings of a second size, the aeration elements being formed by a common housing with separate aeration channels.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: May 2, 2017
    Assignee: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Guenter Pradel, Stefan Weisshaar, Gerhard Greller, Ute Husemann
  • Patent number: 9044718
    Abstract: A mixing vessel includes a flexible container, elements for mixing its contents, aeration elements, a drain/lower bearing port having a rigid flange provided with a drain passage, attached in a tight manner to the lower portion of the container wall, supporting a lower bearing that is adjacent to the drain passage. The vessel includes an extended element for dispensing aeration gas and is spaced essentially radially from the drain/bearing port; at least one tubular element for dispensing aeration gas extends from the extended dispensing element, in the inside space, along the inside surface of the lower portion and the side portion of the wall of the container and extends on the outside of the container from the upper portion; at least one mixing element is spaced essentially from the lower portion of the container wall, from the lower bearing, and from at least one extended element for dispensing aeration gas.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: June 2, 2015
    Assignee: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Jens Ludwig, Oscar-Werner Reif, Gerhard Greller, Wolfgang Kahlert, Günter Pradel, Michael Bates, Magali Barbaroux, Stephanie Baud, Isabelle Gay, Sebastien Chaussin
  • Patent number: 8870443
    Abstract: A flexible pouch has a mixing apparatus, the mixer shaft of which is adjustable in length for use as a bioreactor for culturing microorganisms and cells.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: October 28, 2014
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Gerhard Greller, Guenter Pradel
  • Patent number: 8551334
    Abstract: A filter capsule has a filter housing which, on at least one end face, has an end cap with an air release valve. A protective wall is formed on the end cap at a distance from the air release valve and protrudes beyond the air release valve.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: October 8, 2013
    Assignee: Sartorius Stedim Biotech GmbH
    Inventors: Guenter Pradel, Maik Roehl
  • Publication number: 20120313267
    Abstract: Aeration device for bioreactors with a first aeration element with gas outlet openings of a first size and with at least one second aeration element with gas outlet openings of a second size, the aeration elements being formed by a common housing with separate aeration channels.
    Type: Application
    Filed: October 28, 2010
    Publication date: December 13, 2012
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Guenter Pradel, Stefan Weisshaar, Gerhard Greller, Ute Husemann
  • Publication number: 20110026360
    Abstract: A flexible pouch has a mixing apparatus, the mixer shaft of which is adjustable in length for use as a bioreactor for culturing microorganisms and cells.
    Type: Application
    Filed: March 27, 2009
    Publication date: February 3, 2011
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Gerhard Greller, Guenter Pradel
  • Publication number: 20100282665
    Abstract: A filter capsule has a filter housing which, on at least one end face, has an end cap with an air release valve. A protective wall is formed on the end cap at a distance from the air release valve and protrudes beyond the air release valve.
    Type: Application
    Filed: April 14, 2010
    Publication date: November 11, 2010
    Applicant: SARTORIUS STEDIM BIOTECH GMBH
    Inventors: Guenter Pradel, Maik Roehl
  • Publication number: 20090301962
    Abstract: A housing (1) for the filtration of liquid media, comprising at least one filter candle (2), which has a fluid-tight transition region (10) of a lower annular end cap (6, 6?) with central outlet (7) to a fluid-permeable outer casing (9) and has a tubular adapter (8, 8?) connected to the end cap (6, 6?), and further comprising a housing top part (3) and a housing bottom part (4) having a housing bottom (5), which latter exhibits at least one cylindrical opening (11) for the reception of the adapter (8, 8?) and separates a non-filtrate chamber (14) surrounding the outer casing (9) of the filter candle (2) from a filtrate chamber (16) connected to the central outlet (7), at least a first seal (18) being provided between the cylindrical opening (11) and the filter candle (2), which seal forms a barrier to the filtrate chamber (16), characterized in that the fluid-tight transition region (10) is received in an end cap receiving region (12) of the cylindrical opening (11) and at least terminates with the base surfa
    Type: Application
    Filed: May 18, 2009
    Publication date: December 10, 2009
    Applicant: Sartorius Stedim Biotech GmbH
    Inventors: Paul Priebe, Leon Van Wormer, Guenter Pradel, Theo Meyer
  • Patent number: 6294090
    Abstract: An adsorptive separation device is disclosed having at least one spiral wound adsorption membrane situated around the periphery of a core mandrel wherein the flow is radial from a feed plenum situated between the core mandrel and the membrane, through the membrane to a permeate plenum located between the membrane and a housing for both the core mandrel and the spiral wound membrane. An array of such separation devices is also disclosed showing connections in parallel, in series, in both parallel and in series and in tandem.
    Type: Grant
    Filed: September 16, 1999
    Date of Patent: September 25, 2001
    Assignee: Sartorius AG
    Inventors: Dietmar Nussbaumer, Khoung To Vinh, Abdul Weiss, Wolfgang Demmer, Hans-Heinrich Hörl, Andreas Graus, Günter Pradel