Patents by Inventor Gerid Hellwig
Gerid Hellwig 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).
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Patent number: 11161078Abstract: A disposable filtration device includes a plurality of disposable filter capsules connected with each other by lines, which are carried by a rigid holder. At least the holder and the lines between the filter capsules preferably are formed of a sterilizable material, so that the filtration device can be sterilized in the pre-mounted, i.e. ready-to-connect condition, and can be packed and transported without a risk of damage.Type: GrantFiled: August 1, 2016Date of Patent: November 2, 2021Assignee: SARTORIUS STEDIM BIOTECH GMBHInventors: Thomas Loewe, Sebastian Handt, Wilhelm Requate, Gerid Hellwig, Andre Dell, Thomas Friese
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Patent number: 10493407Abstract: A filtration device (1) has a housing (4) and a filter module (2) with hollow fibers (32) surrounded by an outer shell (5). The hollow fiber bundle (6) is sealed to the outer shell (5) at each end by an adhesive (11) transverse to the longitudinal direction (10). Each end of the hollow fibers (32) is unclosed. An unfiltered product chamber (20) is between the outer shell (5) and a wall (19) of the filter housing (4) and a filtered product chamber (13) is inside the filter module (2). The bottom end of the filter module (2) connects with an intermediate section (3) that connects with a receptacle (17) of a bottom portion (15) of the filter housing (4). The intermediate section (3) forms a connection chamber (26) facing the hollow fiber ends (29) and radial feed channels (28) connect the connection chamber (26) with the unfiltered product chamber (20).Type: GrantFiled: July 18, 2015Date of Patent: December 3, 2019Assignee: Sartorius Stedim Biotech GmbHInventors: Wilhelm Requate, Gerid Hellwig
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Patent number: 10294447Abstract: Bioreactor with a vessel having at least one gas dissipation duct for gas discharge, the orifice of the gas dissipation duct being connected to a hydrophobic sterile filter and to a condenser arranged between them and having condensation surfaces, a turbulence generator for generating a turbulent flow is arranged in the gas dissipation duct in the region of the condenser.Type: GrantFiled: May 7, 2009Date of Patent: May 21, 2019Assignee: SARTORIUS STEDIM BIOTECH GMBHInventors: Oscar-Werner Reif, Gerid Hellwig, Juergen Van Den Boogaard, Ute Noack
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Publication number: 20190083936Abstract: A disposable filtration device includes a plurality of disposable filter capsules connected with each other by lines, which are carried by a rigid holder. At least the holder and the lines between the filter capsules preferably are formed of a sterilizable material, so that the filtration device can be sterilized in the pre-mounted, i.e. ready-to-connect condition, and can be packed and transported without a risk of damage.Type: ApplicationFiled: August 1, 2016Publication date: March 21, 2019Inventors: Thomas LOEWE, Sebastian HANDT, Wilhelm REQUATE, Gerid HELLWIG, Andre DELL, Thomas FRIESE
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Patent number: 10166511Abstract: A hollow fiber module (1, 1?) is made by inserting a bundle of hollow fibers (3) into a housing (2, 2?) that has an end closed by a cap (17). A fluid first component (27) that can assume a solid state is introduced into a space adjacent the cap (17) and forms a spacer into which ends of the hollow fibers (6, 7) project. A fluid curable second component (4) is introduced before the first component (27) via a second inflow (28) and is cured to form a sealing layer (9) that embeds the bundle of hollow fibers (3) and seals it with respect to the adjacent housing wall (29, 29?). The cap (17) is removed from the module housing (2, 2?) along with the first component (27) and ends of the hollow fibers (6) embedded in the first component (27).Type: GrantFiled: April 11, 2015Date of Patent: January 1, 2019Assignee: Sartorius Stedim Biotech GmbHInventors: Wilhelm Requate, Gerid Hellwig, Johannes Wortmeyer, Ulrich Apelt
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Publication number: 20170209835Abstract: A filtration device (1) has a housing (4) and a filter module (2) with hollow fibers (32) surrounded by an outer shell (5). The hollow fiber bundle (6) is sealed to the outer shell (5) at each end by an adhesive (11) transverse to the longitudinal direction (10). Each end of the hollow fibers (32) is unclosed. An unfiltered product chamber (20) is between the outer shell (5) and a wall (19) of the filter housing (4) and a filtered product chamber (13) is inside the filter module (2). The bottom end of the filter module (2) connects with an intermediate section (3) that connects with a receptacle (17) of a bottom portion (15) of the filter housing (4). The intermediate section (3) forms a connection chamber (26) facing the hollow fiber ends (29) and radial feed channels (28) connect the connection chamber (26) with the unfiltered product chamber (20).Type: ApplicationFiled: July 18, 2015Publication date: July 27, 2017Inventors: Wilhelm Requate, Gerid Hellwig
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Publication number: 20170136415Abstract: A hollow fiber module (1, 1?) is made by inserting a bundle of hollow fibers (3) into a housing (2, 2?) that has an end closed by a cap (17). A fluid first component (27) that can assume a solid state is introduced into a space adjacent the cap (17) and forms a spacer into which ends of the hollow fibers (6, 7) project. A fluid curable second component (4) is introduced before the first component (27) via a second inflow (28) and is cured to form a sealing layer (9) that embeds the bundle of hollow fibers (3) and seals it with respect to the adjacent housing wall (29, 29?). The cap (17) is removed from the module housing (2, 2?) along with the first component (27) and ends of the hollow fibers (6) embedded in the first component (27).Type: ApplicationFiled: April 11, 2015Publication date: May 18, 2017Inventors: Wilhelm Requate, Gerid Hellwig, Johannes Wortmeyer, Ulrich Apelt
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Patent number: 8268059Abstract: The invention relates to a waste gas system for bioreactors having a hydrophobic sterile filter, arranged at the end, and a heat exchanger which protects the sterile filter against blocking by liquid media. The gas outflow duct for discharging waste gas from a bioreactor vessel is divided in a cooling zone of the heat exchanger into a multiplicity of subducts and is extended in a heating zone of the heat exchanger to a calming zone. Due to the multiplicity of subducts, a considerably larger surface area for the removal of heat from the waste gas is available, with the result that in the case of laminar flow of the waste gas through the subducts a high effectiveness of the separation of liquids from the waste gas can be achieved.Type: GrantFiled: December 15, 2009Date of Patent: September 18, 2012Assignee: Sartorius Stedim Biotech GmbHInventors: Juergen van den Boogard, Gerid Hellwig, Jens Ludwig, Oscar-Werner Reif, Stefan Weisshaar
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Publication number: 20110076759Abstract: Bioreactor with a vessel having at least one gas dissipation duct for gas discharge, the orifice of the gas dissipation duct being connected to a hydrophobic sterile filter and to a condenser arranged between them and having condensation surfaces, a turbulence generator for generating a turbulent flow is arranged in the gas dissipation duct in the region of the condenser.Type: ApplicationFiled: May 7, 2009Publication date: March 31, 2011Applicant: SARTORIUS STEDIM BIOTECH GMBHInventors: Oscar-Werner Reif, Gerid Hellwig, Juergen Van Den Boogaard, Ute Noack
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Publication number: 20100170400Abstract: The invention relates to a waste gas system for bioreactors having a hydrophobic sterile filter, arranged at the end, and a heat exchanger which protects the sterile filter against blocking by liquid media. The gas outflow duct for discharging waste gas from a bioreactor vessel is divided in a cooling zone of the heat exchanger into a multiplicity of subducts and is extended in a heating zone of the heat exchanger to a calming zone. Due to the multiplicity of subducts, a considerably larger surface area for the removal of heat from the waste gas is available, with the result that in the case of laminar flow of the waste gas through the subducts a high effectiveness of the separation of liquids from the waste gas can be achieved.Type: ApplicationFiled: December 15, 2009Publication date: July 8, 2010Applicant: Sartorius Stedim Biotech GmbHInventors: Juergen van den Boogard, Gerid Hellwig, Jens Ludwig, Oscar-Werner Reif, Stefan Weisshaar