Patents by Inventor Frank Shen

Frank Shen 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: 9850517
    Abstract: Biological cells in a liquid suspension are counted in an automated cell counter that focuses an image of the suspension on a digital imaging sensor that contains at least 4,000,000 pixels each having an area of 2×2 ?m or less and that images a field of view of at least 3 mm2. The sensor enables the counter to compress the optical components into an optical path of less than 20 cm in height when arranged vertically with no changes in direction of the optical path as a whole, and the entire instrument has a footprint of less than 300 cm2. Activation of the light source, automated focusing of the sensor image, and digital cell counting are all initiated by the simple insertion of the sample holder into the instrument. The suspension is placed in a sample chamber in the form of a slide that is shaped to ensure proper orientation of the slide in the cell counter.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: December 26, 2017
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Tom McCollum, Paul Patt, Frank Shen, Daniel Y. Chu, Don Flory, Mike Griffin, Xin Heng, Eli Hefner
  • Publication number: 20140024107
    Abstract: Biological cells in a liquid suspension are counted in an automated cell counter that focuses an image of the suspension on a digital imaging sensor that contains at least 4,000000 pixels each having an area of 2×2 ?m or less and that images a field of view of at least 3 mm2. The sensor enables the counter to compress the optical components into an optical path of less than 20 cm in height when arranged vertically with no changes in direction of the optical path as a whole, and the entire instrument has a footprint of less than 300 cm2. Activation of the light source, automated focusing of the sensor image, and digital cell counting are all initiated by the simple insertion of the sample holder into the instrument. The suspension is placed in a sample chamber in the form of a slide that is shaped to ensure proper orientation of the slide in the cell counter.
    Type: Application
    Filed: September 27, 2013
    Publication date: January 23, 2014
    Applicant: Bio-Rad Laboratories, Inc.
    Inventors: Tom McCOLLUM, Paul PATT, Frank SHEN, Daniel Y. CHU, Don FLORY, Mike GRIFFIN, Xin HENG, Eli HEFNER
  • Patent number: 8570370
    Abstract: Biological cells in a liquid suspension are counted in an automated cell counter that focuses an image of the suspension on a digital imaging sensor that contains at least 4,000,000 pixels each having an area of 2×2 ?m or less and that images a field of view of at least 3 mm2. The sensor enables the counter to compress the optical components into an optical path of less than 20 cm in height when arranged vertically with no changes in direction of the optical path as a whole, and the entire instrument has a footprint of less than 300 cm2. Activation of the light source, automated focusing of the sensor image, and digital cell counting are all initiated by the simple insertion of the sample holder into the instrument. The suspension is placed in a sample chamber in the form of a slide that is shaped to ensure proper orientation of the slide in the cell counter.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: October 29, 2013
    Assignee: Bio-Rad Laboratories, Inc.
    Inventors: Tom McCollum, Paul Patt, Frank Shen, Daniel Y. Chu, Don Flory, Mike Griffin, Xin Heng, Eli Hefner
  • Publication number: 20110211058
    Abstract: Biological cells in a liquid suspension are counted in an automated cell counter that focuses an image of the suspension on a digital imaging sensor that contains at least 4,000,000 pixels each having an area of 2×2 ?m or less and that images a field of view of at least 3 mm2. The sensor enables the counter to compress the optical components into an optical path of less than 20 cm in height when arranged vertically with no changes in direction of the optical path as a whole, and the entire instrument has a footprint of less than 300 cm2. Activation of the light source, automated focusing of the sensor image, and digital cell counting are all initiated by the simple insertion of the sample holder into the instrument. The suspension is placed in a sample chamber in the form of a slide that is shaped to ensure proper orientation of the slide in the cell counter.
    Type: Application
    Filed: August 27, 2010
    Publication date: September 1, 2011
    Applicant: BIO-RAD LABORATORIES, INC.
    Inventors: Tom McCollum, Paul Patt, Frank Shen, Daniel Y. Chu, Don Flory, Mike Griffin, Xin Heng, Eli Hefner
  • Publication number: 20060225870
    Abstract: The present invention provides a cooling apparatus, system, and associated method. The cooling apparatus includes an insulating material, and a heat transfer device at least partially embedded within the structure material. The cooling apparatus also includes a diamond composite sheet positioned adjacent to the structure material, wherein the diamond composite sheet is in thermal communication with the heat transfer device.
    Type: Application
    Filed: April 12, 2005
    Publication date: October 12, 2006
    Inventors: Ching Tsai, Julian Prabhu, Frank Shen
  • Patent number: 6813400
    Abstract: An improved optical isolator having a pre-aligned first and second collimator and a pre-aligned core assembly joined with the first collimator, the first and second collimators and core assembly all disposed within a housing tube. The core assembly is aligned with and joined directly to the first collimator and fits snugly within the housing tube. The second collimator fits within the housing tube such that it can be aligned with core assembly to minimize insertion loss. The first and second collimators are connected to the housing tube by solder joints, at least one of which is made from a low temperature solder. The core assembly includes a cylindrical permanent magnet, a pair of birefringent wedges and an optical rotator. The optical rotator is joined to a wedge on either side and the combined structure is affixed to the cylindrical permanent magnet.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: November 2, 2004
    Assignee: OptiWork, Inc.
    Inventors: Hwa-Tse (Roger) Liang, Siyu (Frank) Shen, Hua (Phillip) Guo
  • Patent number: 6631220
    Abstract: An improved optical isolator having a pre-aligned first and second collimator and a pre-aligned core assembly joined with the first collimator, the first and second collimators and core assembly all disposed within a housing tube. The core assembly is aligned with and joined directly to the first collimator and fits snugly within the housing tube. The second collimator fits within the housing tube such that it can be aligned with core assembly to minimize insertion loss. The first and second collimators are connected to the housing tube by solder joints, at least one of which is made from a low temperature solder. The core assembly includes a cylindrical permanent magnet, a pair of birefringent wedges and an optical rotator. The optical rotator is joined to a wedge on either side and the combined structure is affixed to the cylindrical permanent magnet.
    Type: Grant
    Filed: July 7, 2000
    Date of Patent: October 7, 2003
    Assignee: OptiWork, Inc.
    Inventors: Hwa-Tse (Roger) Liang, Siyu (Frank) Shen, Hua (Philip) Guo
  • Publication number: 20030092027
    Abstract: The invention provides methods of using two-dimensional nuclear magnetic resonance to identify compounds that bind to a target compound.
    Type: Application
    Filed: May 31, 2002
    Publication date: May 15, 2003
    Inventors: Luciano Mueller, Li-An Xu, Chin-Hua Frank Shen