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).

  • Aeration device for bioreactors
    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
  • Flexible pouch with a mixing apparatus
    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
  • Filter capsule
    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
  • AERATION DEVICE FOR BIOREACTORS
    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
  • FLEXIBLE POUCH WITH A MIXING APPARATUS
    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
  • FILTER CAPSULE
    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
  • Filtration housing
    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