Patents by Inventor Steffen Hardt
Steffen Hardt 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: 12252677Abstract: A fluidic device, a fluidic system and a method for developing a cellular starting material into a three-dimensional cellular structure. The fluidic device includes a base body which includes a chamber in which a matrix is received, into which the cellular starting material to be developed can be introduced, and at least two fluid reservoirs. Each fluid reservoir includes a fluid inlet, a fluid outlet and a separating device which is partially permeable to a fluid medium and which separates the associated fluid reservoir from the chamber and forms a common plane interface with the chamber, via which the fluid medium can diffuse into the matrix.Type: GrantFiled: October 28, 2019Date of Patent: March 18, 2025Assignee: TECHNISCHE UNIVERSITÄT DARMSTADTInventors: Ulrike Nuber, Heinz Koeppl, Steffen Hardt, Katrin Töpfer
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Publication number: 20210355422Abstract: A fluidic device, a fluidic system and a method for developing a cellular starting material into a three-dimensional cellular structure. The fluidic device includes a base body which includes a chamber in which a matrix is received, into which the cellular starting material to be developed can be introduced, and at least two fluid reservoirs. Each fluid reservoir includes a fluid inlet, a fluid outlet and a separating device which is partially permeable to a fluid medium and which separates the associated fluid reservoir from the chamber and forms a common plane interface with the chamber, via which the fluid medium can diffuse into the matrix.Type: ApplicationFiled: October 28, 2019Publication date: November 18, 2021Inventors: Ulrike NUBER, Heinz KOEPPL, Steffen HARDT, Katrin TÖPFER
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Patent number: 8021530Abstract: Electric fields are applied parallel to and/or vertical to the interfaces on adjacent microfluid lamellae made of nonmiscible media containing said biomolecules and bioparticles to which they have different physico-chemical affinities in order to separate biomolecules and bioparticles and the biomolecules and bioparticles are electrophoretically separated.Type: GrantFiled: November 9, 2004Date of Patent: September 20, 2011Assignee: Istitut fur Mikrotechnik Mainz GmbHInventor: Steffen Hardt
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Publication number: 20070045184Abstract: Electric fields are applied parallel to and/or vertical to the interfaces on adjacent microfluid lamellae made of nonmiscible media containing said biomolecules and bioparticles (24) to which they have different physico-chemical affinities in order to separate biomolecules and bioparticles (24) and the biomolecules and bioparticles (24) are electrophoretically separated.Type: ApplicationFiled: November 9, 2004Publication date: March 1, 2007Inventor: Steffen Hardt
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Publication number: 20060228276Abstract: Parallel flow chemical processing systems, such as parallel flow chemical reaction systems are disclosed. These systems are adapted to simultaneously and independently vary temperature between separate flow channels, preferably by employing separate, individual heating elements in thermal communication with each of four or more parallel flow reactors. The flow reactors are preferably isolated from each other using a thermal isolation system comprising fluid-based heat exchange. In preferred embodiments, the axial heat flux can be fixedly or controllably varied.Type: ApplicationFiled: June 6, 2006Publication date: October 12, 2006Applicant: Symyx Technologies, Inc.Inventors: H. Bergh, Shenheng Guan, James Engstrom, Steffen Hardt, Astrid Lohf, Frank Michel
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Patent number: 7118917Abstract: Parallel flow chemical processing systems, such as parallel flow chemical reaction systems are disclosed. These systems are adapted to simultaneously and independently vary temperature between separate flow channels, preferably by employing separate, individual heating elements in thermal communication with each of four or more parallel flow reactors. The flow reactors are preferably isolated from each other using a thermal isolation system comprising fluid-based heat exchange. In preferred embodiments, the axial heat flux can be fixedly or controllably varied.Type: GrantFiled: March 7, 2002Date of Patent: October 10, 2006Assignee: Symyx Technologies, Inc.Inventors: H. Sam Bergh, Shenheng Guan, James R. Engstrom, Steffen Hardt, Astrid Lohf, Frank Michel
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Patent number: 7097347Abstract: A novel mixing apparatus and process for mixing at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply channels to feed a mixing chamber and create a vortex. The alignment of the supply channels is such that fluids are introduced into the chamber at both tangential and radial directions. In the case of gas/liquid mixing, particularly advantageous is the injection of the liquid stream tangentially and the gas stream radially. When two liquid streams are mixed, it is desirable to distribute them into fine, interdigitated channels prior to introduction into a supply channel and finally into the chamber. The mixed stream is generally withdrawn from the center of the swirling vortex and in a direction perpendicular to the plane of the vortex.Type: GrantFiled: November 19, 2003Date of Patent: August 29, 2006Assignee: UOP LLCInventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Löwe, Steffen Hardt
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Patent number: 6863867Abstract: A novel apparatus for mixing and reacting at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply channels to feed a mixing chamber and create a vortex. The alignment of the supply channels is such that fluids are introduced into the chamber at both tangential and radial directions. In the case of gas/liquid mixing, particularly advantageous is the injection of the liquid stream tangentially and the gas stream radially. Reaction of the fluids can take place within the mixing chamber or in a separate reactor in fluid communication with the mixing chamber outlet. The mixer/reactor apparatus is especially useful for reactions where rapid diffusion is critical.Type: GrantFiled: May 7, 2001Date of Patent: March 8, 2005Assignee: UOP LLCInventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Löwe, Steffen Hardt
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Publication number: 20040125689Abstract: The invention relates to a method for mixing at least two fluids, wherein the fluids are introduced as adjacent fluid lamellae into a swirl chamber, forming a fluid spiral flowing inward. Removal of the resulting mixture is carried out from the center of the fluid spiral. The static micromixer has a mixing chamber in the form of a swirl chamber (6), in which the inlet channels (15a, b, 16a, b) discharge in such a way that the fluid lamellae enter in the form of fluid jets forming a fluid spiral (50) flowing inward. At least one outlet (25) is fluidically connected to the swirl chamber (6) for removing the resulting mixture.Type: ApplicationFiled: November 3, 2003Publication date: July 1, 2004Inventors: Wolfgang Ehrfeld, Steffen Hardt
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Publication number: 20040100861Abstract: A novel mixing apparatus and process for mixing at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply channels to feed a mixing chamber and create a vortex. The alignment of the supply channels is such that fluids are introduced into the chamber at both tangential and radial directions. In the case of gas/liquid mixing, particularly advantageous is the injection of the liquid stream tangentially and the gas stream radially. When two liquid streams are mixed, it is desirable to distribute them into fine, interdigitated channels prior to introduction into a supply channel and finally into the chamber. The mixed stream is generally withdrawn from the center of the swirling vortex and in a direction perpendicular to the plane of the vortex.Type: ApplicationFiled: November 19, 2003Publication date: May 27, 2004Inventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Lowe, Steffen Hardt
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Patent number: 6655829Abstract: A novel mixing apparatus and process for mixing at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply channels to feed a mixing chamber and create a vortex. The alignment of the supply channels is such that fluids are introduced into the chamber at both tangential and radial directions. In the case of gas/liquid mixing, particularly advantageous is the injection of the liquid stream tangentially and the gas stream radially. When two liquid streams are mixed, it is desirable to distribute them into fine, interdigitated channels prior to introduction into a supply channel and finally into the chamber. The mixed stream is generally withdrawn from the center of the swirling vortex and in a direction perpendicular to the plane of the vortex.Type: GrantFiled: May 7, 2001Date of Patent: December 2, 2003Assignee: UOP LLCInventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Löwe, Steffen Hardt
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Publication number: 20020187090Abstract: A novel apparatus for mixing and reacting at least two fluids are disclosed. Excellent mixing and superior pressure drop characteristics are achieved in a device comprising at least two supply channels to feed a mixing chamber and create a vortex. The alignment of the supply channels is such that fluids are introduced into the chamber at both tangential and radial directions. In the case of gas/liquid mixing, particularly advantageous is the injection of the liquid stream tangentially and the gas stream radially. Reaction of the fluids can take place within the mixing chamber or in a separate reactor in fluid communication with the mixing chamber outlet. The mixer/reactor apparatus is especially useful for reactions where rapid diffusion is critical.Type: ApplicationFiled: May 7, 2001Publication date: December 12, 2002Inventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Lowe, Steffen Hardt
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Publication number: 20020170976Abstract: Parallel flow chemical processing systems, such as parallel flow chemical reaction systems are disclosed. These systems are adapted to simultaneously and independently vary temperature between separate flow channels, preferably by employing separate, individual heating elements in thermal communication with each of four or more parallel flow reactors. The flow reactors are preferably isolated from each other using a thermal isolation system comprising fluid-based heat exchange. In preferred embodiments, the axial heat flux can be fixedly or controllably varied.Type: ApplicationFiled: March 7, 2002Publication date: November 21, 2002Inventors: H. Sam Bergh, Shenheng Guan, James R. Engstrom, Steffen Hardt, Astrid Lohf, Frank Michel