Patents by Inventor Tarun Chandra

Tarun Chandra 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: 7933644
    Abstract: A system and method that can simultaneously acquire electrocardiogram or pulse rate data (42, 44, 46), dynamically perform time-frequency (70) and chaotic analysis (60) in real-time, visually display the results in a convenient graphical format (50) and store the results in a computer file format (50).
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: April 26, 2011
    Assignee: Cytoptics Corporation
    Inventors: Lid B. Wong, Donovan B. Yeates, Guanglin Li, Tarun Chandra, Mahandas A. Kizhakayil
  • Publication number: 20070219455
    Abstract: A system and method that can simultaneously acquire electrocardiogram or pulse rate data (42, 44, 46), dynamically perform time-frequency (70) and chaotic analysis (60) in real-time, visually display the results in a convenient graphical format (50) and store the results in a computer file format (50).
    Type: Application
    Filed: March 26, 2004
    Publication date: September 20, 2007
    Inventors: Lid Wong, Donovan Yeates, Guanglin Li, Tarun Chandra, Mahandas Kizhakayil
  • Publication number: 20060256342
    Abstract: The present invention relates to a method and system that enables continuous real-time analysis of both ciliary beat frequency and metachronal wave frequency from a single spot in excised native ciliated epithelial tissues as well as in primary and subsequent epithelial cultures. Such method and system utilizes the concept of time-scale wavelet analysis and Hilbert Transformation for backscattered light derived from a confocal (conjugate) spot on the moving cilia. This light contains inherent high and low frequency components corresponding to CBF and MWF.
    Type: Application
    Filed: March 26, 2004
    Publication date: November 16, 2006
    Inventors: Lid Wong, Donovan Yeates, Hua Mao, Tarun Chandra
  • Patent number: 6998411
    Abstract: The present invention relates to a novel antifungal antibacterial compound 2-methylheptylisonicotinate of formula 1 below obtained from natural sources and to a process for the isolation thereof.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: February 14, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Gojendra Nath Bordoloi, Babita Kumari, Nabibjyoti Bordoloi, Monoj Kanti Roy, Tarun Chandra Bora
  • Publication number: 20040234187
    Abstract: A method of measuring nonstationary oscillatory motion of a sample is disclosed. The method comprisesing the steps of illuminating a sample with an illuminating optical fiber; detecting reflectedbackscattered light from the sample with a plurality of detecting optical fibers; coupling each optical fiber of the plurality of detecting optical fibers with a modulating optical fiber; and generating measurements of the nonstationary oscillatory motion of the sample. An apparatus for measuring nonstationary oscillatory motion of a sample is also disclosed. The apparatus comprises a light source; an illuminating optical fiber coupled to the light source; and a plurality of optical fibers positioned around the illuminating optical fiber and coupled to receive reflectedbackscattered light from the sample.
    Type: Application
    Filed: April 15, 2004
    Publication date: November 25, 2004
    Inventors: Lid B. Wong, Hua Mao, Tarun Chandra, Donovan B. Yeates
  • Publication number: 20040001662
    Abstract: A method of measuring oscillatory motion of a sample is disclosed. The method comprises the steps of illuminating a sample with an illuminating optical fiber; detecting backscattered light from the sample with a plurality of detecting optical fibers; coupling each optical fiber of the plurality of detecting optical fibers with a modulating optical fiber; and generating measurements of the oscillatory motion of the sample. An apparatus for measuring oscillatory motion of a sample is also disclosed. The apparatus comprises a light source; an illuminating optical fiber coupled to the light source; and a plurality of optical fibers positioned around the illuminating optical fiber and coupled to receive backscattered light from the sample.
    Type: Application
    Filed: June 27, 2002
    Publication date: January 1, 2004
    Applicant: BioTechPlex Corporation
    Inventors: Lid B. Wong, Hua Mao, Tarun Chandra, Donovan B. Yeates
  • Publication number: 20030228566
    Abstract: An apparatus is disclosed for screening a compound by monitoring its interactions with a specimen having fluorophore loaded target cells. The apparatus comprises an optical illumination unit comprising a light source wherein light from the light source is directed to illuminate the specimen; a fluorescence discrimination unit which is coupled to receive emitted light from the specimen and separate at least three emitted wavelengths of light from said emitted light; and a fluorescence detection unit which is coupled to the fluorescence discrimination unit counts photons emitted by the wavelengths of emitted light. A method of screening a compound by monitoring its interactions with a specimen having fluorophore loaded target cells is also described. The method comprises the steps of coupling a light source to the specimen to illuminate the specimen; separating at least three wavelengths of light emitted by the specimen, and detecting photon counts from the three emitted wavelengths of light.
    Type: Application
    Filed: June 11, 2002
    Publication date: December 11, 2003
    Applicant: BioTechPlex Corporation
    Inventors: Hua Mao, Lid B. Wong, Tarun Chandra, Donovan B. Yeates
  • Publication number: 20020161027
    Abstract: The present invention relates to a novel antifungal antibacterial compound 2-methylheptylisonicotinate of formula 1 below obtained from natural sources and to a process for the isolation thereof.
    Type: Application
    Filed: December 20, 2001
    Publication date: October 31, 2002
    Applicant: Council of Scientific and Industrial Research
    Inventors: Gojendra Nath Bordoloi, Babita Kumari, Nabibjyoti Bordoloi, Monoj Kanti Roy, Tarun Chandra Bora
  • Patent number: 5468649
    Abstract: Embodiments of the invention provide methods of preparing an activated acridinium microparticle. Generally, the methods involve direct covalent coupling or an affinity format. The direct covalent coupling method involves coating a microparticle with a proteinaceous compound. Then, a 10-methyl-N-tosyl-N-(2-carboxyethyl)-9-acridinium carboximide trifluoromethane sulfonate is coupled to the proteinaceous compound. In the affinity format, a microparticle is coated with a biotinylated proteinaceous compound. The microparticle is reacted with an anti-biotin labelled 10-methyl-N-tosyl-N-(2-carboxyethyl)-9-acridinium carboximide trifluoromethane sulfonate. Methods are also provided for using such a microparticle. Those methods of use can estimate transfer efficiency, calibrate optics, and measure membrane pore size of a chemiluminescence based instrument. Test elements for analytical instruments are also provided.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: November 21, 1995
    Assignee: Abbott Laboratories
    Inventors: Dinesh O. Shah, Tarun Chandra, Kurt Klosterman