Patents by Inventor Marcus Gassmann

Marcus Gassmann 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: 20110290330
    Abstract: A method for removing fluid in a microfluidic device, the microfluidic device having a fluid channel, a first well, and a second well, the first well and the second well being coupled to a first end of the fluid channel, the method including applying a pressure difference between the second well and the first well, and applying a pressure difference between the first end and a second end of the fluid channel being below a certain threshold, for at least partly removing a first fluid from a first supply line coupled between the first well and the first end of the fluid channel.
    Type: Application
    Filed: August 9, 2007
    Publication date: December 1, 2011
    Applicant: AGILENT TECHNOLOGIES, INC.
    Inventors: Marcus Gassmann, Fritz Bek
  • Patent number: 7998437
    Abstract: A microfluidic assembly (1;57) has at least one microfluidic flow path (17,27,29,35,38;82,85,95) and at least one inlet port (11,13,15;81,97,101) coupled to the flow path (17,27,29,35,38;82,85,95). The microfluidic assembly (1;57) has a first microfluidic device (7;63) that executes a microfluidic process and has a second microfluidic device (9;61). The microfluidic assembly (1;57) has an interface (5;65). The interface (5;65) couples the first microfluidic device (7;63) and the second microfluidic device (9;61).
    Type: Grant
    Filed: February 16, 2007
    Date of Patent: August 16, 2011
    Assignee: Agilent Technologies, Inc.
    Inventors: Manfred Berndt, Marcus Gassmann
  • Patent number: 7871507
    Abstract: A medium is provided, being adapted to be applied in electrophoretic separation of nucleic acids. The medium comprises a staining reagent adapted to stain nucleic acids. Said medium further comprises a urea derivative, adapted to interact with said staining reagent and thereby providing an enhanced staining of said nucleic acids. Further, an electrophoresis device is provided, adapted to perform electrophoretic separation of nucleic acids, comprising the before medium and comprising electrodes for applying an electrical field across the medium. A method to perform electrophoresis using the before electrophoresis device and medium is provided.
    Type: Grant
    Filed: April 30, 2007
    Date of Patent: January 18, 2011
    Assignee: Agilent Technologies, Inc.
    Inventor: Marcus Gassmann
  • Patent number: 7846314
    Abstract: A method for handling samples in a microfluidic system is described. The microfluidic system includes an injection channel fluidically coupled to an injection point adapted for injecting an amount of fluid, a first sample well containing a first sample, the first sample well being fluidically coupled with the injection channel, and a second sample well containing a second sample, the second sample well being fluidically coupled with the injection channel. The method includes moving the second sample from the second sample well towards the first sample well.
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: December 7, 2010
    Assignee: Agilent Technologies , Inc
    Inventor: Marcus Gassmann
  • Publication number: 20080311006
    Abstract: A fluid supply unit is described, with the fluid supply unit comprising a fluid dispenser with an orifice adapted for dispensing a fluid, and a microfluidic device comprising an inlet port located at one of the faces of the microfluidic device. The fluid supply unit is adapted for establishing a fluidic contact between a droplet formed at the fluid dispenser's orifice and an inlet port of the microfluidic device, and the fluid supply unit is adapted for electrophoretically moving charged compounds from the droplet towards the inlet port.
    Type: Application
    Filed: August 29, 2007
    Publication date: December 18, 2008
    Inventors: Fritz Bek, Marcus Gassmann
  • Publication number: 20080251380
    Abstract: A medium is provided, being adapted to be applied in electrophoretic separation of nucleic acids. The medium comprises a staining reagent adapted to stain nucleic acids. Said medium further comprises a urea derivative, adapted to interact with said staining reagent and thereby providing an enhanced staining of said nucleic acids. Further, an electrophoresis device is provided, adapted to perform electrophoretic separation of nucleic acids, comprising the before medium and comprising electrodes for applying an electrical field across the medium. A method to perform electrophoresis using the before electrophoresis device and medium is provided.
    Type: Application
    Filed: April 30, 2007
    Publication date: October 16, 2008
    Inventor: Marcus Gassmann
  • Publication number: 20070261961
    Abstract: A method for handling samples in a microfluidic system is described. The microfluidic system includes an injection channel fluidically coupled to an injection point adapted for injecting an amount of fluid, a first sample well containing a first sample, the first sample well being fluidically coupled with the injection channel, and a second sample well containing a second sample, the second sample well being fluidically coupled with the injection channel. The method includes moving the second sample from the second sample well towards the first sample well.
    Type: Application
    Filed: May 11, 2006
    Publication date: November 15, 2007
    Inventor: Marcus Gassmann
  • Publication number: 20070154355
    Abstract: US 2004/0119070A1 (D1) discloses an integrated microchip design, wherein glass microchips can be linearly moved against one another, in order to connect or disconnect capillary channels in the microchips. In contrast thereto, the invention provides a plastic material microfluidic device having an interface for coupling and flow controlling a flow path between the plastic and a second microfluidic device, which can be made e.g. of glass. This allows coupling e.g. different material microfluidic devices e.g. in order to make use of advantages of different material type microfluidic devices.
    Type: Application
    Filed: February 16, 2007
    Publication date: July 5, 2007
    Inventors: Manfred Berndt, Marcus Gassmann
  • Publication number: 20070039823
    Abstract: A microfluidic system comprises a first reservoir, an injection channel fluidically coupled to the first reservoir and to an injection point adapted for injecting an amount of fluid, and a side channel fluidically coupled to the injection channel at an intersection point located between the first reservoir and the injection point, the side channel being fluidically coupled with a second reservoir. Both the injection channel and the side channel are at least partly filled with a first substance and the second reservoir is at least partly filled with a second substance. The first substance is a gel and the second substance is a buffer solution. The side channel's cross section is larger than the injection channel's cross section.
    Type: Application
    Filed: May 30, 2006
    Publication date: February 22, 2007
    Inventors: Fritz Bek, Marcus Gassmann