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).

  • Publication number: 20210355422
    Abstract: 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: Application
    Filed: October 28, 2019
    Publication date: November 18, 2021
    Inventors: Ulrike NUBER, Heinz KOEPPL, Steffen HARDT, Katrin TÖPFER
  • Patent number: 8021530
    Abstract: 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: Grant
    Filed: November 9, 2004
    Date of Patent: September 20, 2011
    Assignee: Istitut fur Mikrotechnik Mainz GmbH
    Inventor: Steffen Hardt
  • Publication number: 20070045184
    Abstract: 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: Application
    Filed: November 9, 2004
    Publication date: March 1, 2007
    Inventor: Steffen Hardt
  • Publication number: 20060228276
    Abstract: 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: Application
    Filed: June 6, 2006
    Publication date: October 12, 2006
    Applicant: Symyx Technologies, Inc.
    Inventors: H. Bergh, Shenheng Guan, James Engstrom, Steffen Hardt, Astrid Lohf, Frank Michel
  • Patent number: 7118917
    Abstract: 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: Grant
    Filed: March 7, 2002
    Date of Patent: October 10, 2006
    Assignee: Symyx Technologies, Inc.
    Inventors: H. Sam Bergh, Shenheng Guan, James R. Engstrom, Steffen Hardt, Astrid Lohf, Frank Michel
  • Patent number: 7097347
    Abstract: 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: Grant
    Filed: November 19, 2003
    Date of Patent: August 29, 2006
    Assignee: UOP LLC
    Inventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Löwe, Steffen Hardt
  • Patent number: 6863867
    Abstract: 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: Grant
    Filed: May 7, 2001
    Date of Patent: March 8, 2005
    Assignee: UOP LLC
    Inventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Löwe, Steffen Hardt
  • Publication number: 20040125689
    Abstract: 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: Application
    Filed: November 3, 2003
    Publication date: July 1, 2004
    Inventors: Wolfgang Ehrfeld, Steffen Hardt
  • Publication number: 20040100861
    Abstract: 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: Application
    Filed: November 19, 2003
    Publication date: May 27, 2004
    Inventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Lowe, Steffen Hardt
  • Patent number: 6655829
    Abstract: 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: Grant
    Filed: May 7, 2001
    Date of Patent: December 2, 2003
    Assignee: UOP LLC
    Inventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Löwe, Steffen Hardt
  • Publication number: 20020187090
    Abstract: 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: Application
    Filed: May 7, 2001
    Publication date: December 12, 2002
    Inventors: Kurt M. Vanden Bussche, Suheil F. Abdo, Volker Hessel, Holger Lowe, Steffen Hardt
  • Publication number: 20020170976
    Abstract: 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: Application
    Filed: March 7, 2002
    Publication date: November 21, 2002
    Inventors: H. Sam Bergh, Shenheng Guan, James R. Engstrom, Steffen Hardt, Astrid Lohf, Frank Michel