Patents by Inventor David S. Cohen

David S. Cohen 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).

  • Patent number: 8394642
    Abstract: The invention provides a system that can process a raw biological sample, perform a biochemical reaction and provide an analysis readout. For example, the system can extract DNA from a swab, amplify STR loci from the DNA, and analyze the amplified loci and STR markers in the sample. The system integrates these functions by using microfluidic components to connect what can be macrofluidic functions. In one embodiment the system includes a sample purification module, a reaction module, a post-reaction clean-up module, a capillary electrophoresis module and a computer. In certain embodiments, the system includes a disposable cartridge for performing analyte capture. The cartridge can comprise a fluidic manifold having macrofluidic chambers mated with microfluidic chips that route the liquids between chambers. The system fits within an enclosure of no more than 10 ft3. and can be a closed, portable, and/or a battery operated system. The system can be used to go from raw sample to analysis in less than 4 hours.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: March 12, 2013
    Assignee: IntegenX Inc.
    Inventors: Stevan B. Jovanovich, William D. Nielsen, David S. Cohen, Michael Recknor, Mattias Vangbo, Ezra Van Gelder, Lars Majlof, Omar El-Sissi
  • Publication number: 20120305087
    Abstract: New high density microfluidic devices and methods provide precise metering of fluid volumes and efficient mixing of the metered volumes. A first solution is introduced into a segment of a flow channel in fluidic communication with a reaction chamber. A second solution is flowed through the segment so that the first solution is displaced into the reaction chamber, and a volume of the second solution enters the chamber. The chamber can then be isolated and reactions within the chamber can be initiated and/or detected. High throughput methods of genetic analysis can be carried out with greater accuracy than previously available.
    Type: Application
    Filed: April 4, 2012
    Publication date: December 6, 2012
    Applicant: Fluidigm Corporation
    Inventors: David S. Cohen, Jing Wang, Andrew May, Robert C. Jones, Hany Nassef
  • Patent number: 8157434
    Abstract: New high density microfluidic devices and methods provide precise metering of fluid volumes and efficient mixing of the metered volumes. A first solution is introduced into a segment of a flow channel in fluidic communication with a reaction chamber. A second solution is flowed through the segment so that the first solution is displaced into the reaction chamber, and a volume of the second solution enters the chamber. The chamber can then be isolated and reactions within the chamber can be initiated and/or detected. High throughput methods of genetic analysis can be carried out with greater accuracy than previously available.
    Type: Grant
    Filed: January 22, 2008
    Date of Patent: April 17, 2012
    Assignee: Fluidigm Corporation
    Inventors: David S. Cohen, Jing Wang, Andrew May, Robert C. Jones, Hany Nassef
  • Publication number: 20110005932
    Abstract: The invention provides a system that can process a raw biological sample, perform a biochemical reaction and provide an analysis readout. For example, the system can extract DNA from a swab, amplify STR loci from the DNA, and analyze the amplified loci and STR markers in the sample. The system integrates these functions by using microfluidic components to connect what can be macrofluidic functions. In one embodiment the system includes a sample purification module, a reaction module, a post-reaction clean-up module, a capillary electrophoresis module and a computer. In certain embodiments, the system includes a disposable cartridge for performing analyte capture. The cartridge can comprise a fluidic manifold having macrofluidic chambers mated with microfluidic chips that route the liquids between chambers. The system fits within an enclosure of no more than 10 ft3. and can be a closed, portable, and/or a battery operated system. The system can be used to go from raw sample to analysis in less than 4 hours.
    Type: Application
    Filed: June 7, 2010
    Publication date: January 13, 2011
    Applicant: IntegenX Inc.
    Inventors: Stevan B. JOVANOVICH, William D. Nielsen, David S. Cohen, Michael Recknor, Mattias Vangbo, Ezra Van Gelder, Lars Majlof, Omar El-Sissi
  • Patent number: 7775991
    Abstract: A blood sampling device includes a lancet having a skin piercing member disposed at an end thereof. The lancet is slidable within and releasably engaged with an elongated lancet guide that remains stationary with use of the device. A shell is axially movable relative to the lancet guide between a rest position and an actuate position, with the lancet being spring loaded within the lancet guide by movement of the shell from the rest position to the actuate position.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: August 17, 2010
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Shawn R. Feaster, Rosann M. Kaylor, David S. Cohen, Udo Leuschner, Michael Strehl
  • Publication number: 20080223721
    Abstract: New high density microfluidic devices and methods provide precise metering of fluid volumes and efficient mixing of the metered volumes. A first solution is introduced into a segment of a flow channel in fluidic communication with a reaction chamber. A second solution is flowed through the segment so that the first solution is displaced into the reaction chamber, and a volume of the second solution enters the chamber. The chamber can then be isolated and reactions within the chamber can be initiated and/or detected. High throughput methods of genetic analysis can be carried out with greater accuracy than previously available.
    Type: Application
    Filed: January 22, 2008
    Publication date: September 18, 2008
    Applicant: Fluidigm Corporation
    Inventors: David S. Cohen, Jing Wang, Andrew May, Robert C. Jones, Hany Nassef
  • Publication number: 20020098528
    Abstract: This invention relates to clinical diagnostic assays and related optical bio-discs and a disc-reading apparatus. The invention is directed to a methods for determining the blood cell type of an individual.
    Type: Application
    Filed: November 19, 2001
    Publication date: July 25, 2002
    Inventors: John F. Gordon, Susan N. Hunt, David S. Cohen
  • Patent number: 5165222
    Abstract: A racing blanket for greyhound dogs is provided wherein a rearward section of the blanket is secured about the dog's stomach by a single buckle comprising two buckle sections attached to elastic straps. The engaged buckle is positioned on the blanket at the dog's side and a loop is positioned to hold the buckle away from direct contact with the dog.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: November 24, 1992
    Assignee: Halemar Specialties, Inc.
    Inventors: David S. Cohen, Melvin I. Loman
  • Patent number: 5044322
    Abstract: A strap device adapted to be secured to an animal is provided which has a strap with at least one end portion adapted to be formed into a loop which is closed with a fastener comprising a boss or rivet having exposed smooth surfaces. The section of the strap device adajcent the strap end after forming the loop is thicker than the remaining section of the strap and has a top surface which inclines from a height substantially equal to the strap end portion down to the section of the stap having a thinner thickness. The fastener is designed to fit tightly within two holes in the strap so the loop can not be removed by hand.
    Type: Grant
    Filed: July 5, 1990
    Date of Patent: September 3, 1991
    Assignee: Halemar Specialties, Inc.
    Inventors: David S. Cohen, Melvin I. Loman