Patents Assigned to Polestar Technologies, Inc.
  • Patent number: 9491378
    Abstract: Methods and systems for efficiently and accurately detecting and identifying concealed materials. The system includes an analysis subsystem configured to process a number of pixelated images, the number of pixelated images obtained by repeatedly illuminating, through a patterning component, regions, where an electromagnetic radiation source, from a number of electromagnetic radiation sources, illuminates the patterning component, each repetition performed with a different wavelength. A number of Global pixelated images are obtained. The number of global pixelated images, after processing, constitute a vector of processed data at each pixel from a number of pixels. At each pixel, the vector of processed data is compared to a predetermined vector corresponding to a predetermined material, presence of the predetermined material being determined by the comparison.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: November 8, 2016
    Assignee: Polestar Technologies, Inc.
    Inventors: James A. Kane, Ranganathan Shashidhar
  • Patent number: 9347908
    Abstract: A molecular recognition sensor system is provided incorporating a molecular imprinted nanosensor device.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: May 24, 2016
    Assignee: Polestar Technologies, Inc.
    Inventors: Xiulan Li, Ranganathan Shashidhar, Yufeng Ma
  • Patent number: 9316594
    Abstract: A carbon dioxide detector including a sensor component, where the sensor component has a colorimetric indicator salt of a colorimetric pH indicator and a lipophilic phosphonium quaternary cation, a transparent polymer vehicle or a plasticizer not being in a mixture with the colorimetric indicator salt; and a porous memory, a porous polymer membrane in one instance, the colorimetric indicator salt being deposited on a surface of the porous polymer membrane; the colorimetric indicator salt deposited on the porous polymer membrane does not include a transparent polymer vehicle or a plasticizer, and carbon dioxide detection systems using the detector.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: April 19, 2016
    Assignee: Polestar Technologies, Inc.
    Inventor: James A. Kane
  • Patent number: 9310512
    Abstract: Methods and systems for efficiently and accurately detecting and identifying concealed materials. The system includes an analysis subsystem configured to process one or more detection outputs, the detection outputs obtained by illuminating regions with a electromagnetic radiation source from the number of electromagnetic radiation sources, each electromagnetic radiation source emitting at a different wavelength, the one or more detection outputs, after processing, constituting a vector of processed data, and the analysis subsystem being also configured to compare the vector of processed data to a predetermined vector corresponding to a predetermined material, presence of the predetermined material being determined by the comparison.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 12, 2016
    Assignee: Polestar Technologies, Inc.
    Inventors: James A. Kane, Ranganathan Shashidhar, Timothy Bortz
  • Patent number: 9305237
    Abstract: Methods and systems for efficiently and accurately detecting and identifying concealed materials. The system includes an analysis subsystem configured to process a number of pixelated images, the number of pixelated images obtained by repeatedly illuminating regions with a electromagnetic radiation source from a number of electromagnetic radiation sources, each repetition performed with a different wavelength. The number of pixelated images, after processing, constitute a vector of processed data at each pixel from a number of pixels. At each pixel, the vector of processed data is compared to a predetermined vector corresponding to a predetermined material, presence of the predetermined material being determined by the comparison.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: April 5, 2016
    Assignee: Polestar Technologies, Inc.
    Inventors: James A. Kane, Ranganathan Shashidhar
  • Patent number: 9262692
    Abstract: Methods and systems for efficiently and accurately detecting and identifying concealed materials. The system includes an analysis subsystem configured to process a number of pixelated images, the number of pixelated images obtained by repeatedly illuminating regions with a electromagnetic radiation source from a number of electromagnetic radiation sources, each repetition performed with a different wavelength. The number of pixelated images, after processing, constitute a vector of processed data at each pixel from a number of pixels. At each pixel, the vector of processed data is compared to a predetermined vector corresponding to a predetermined material, presence of the predetermined material being determined by the comparison.
    Type: Grant
    Filed: November 2, 2012
    Date of Patent: February 16, 2016
    Assignee: Polestar Technologies, Inc.
    Inventors: James A. Kane, Ranganathan Shashidhar
  • Patent number: 8685745
    Abstract: A multilayered optical sensing patch, for the measurement of conditions, such as pH, oxygen level, etc, within containers, is provided. The multilayered optical sensing patch of the present invention is comprised of a heat sealable polymer substrate layer, and a polymeric sensing membrane later attached thereto. The polymer sensing membrane layer is formed of a porous polymer support membrane, and an optical sensing composition (comprising a reactive indicator) covalently bonded thereto. The heat sealable polymer substrate layer is capable of being securely bonded to the inner layer of bioreactor bags, as well as the porous polymer support substrate layer. Further, the porous polymer support membrane layer provides a firm supporting structure for the polymeric sensing layer, thereby protecting the optical sensing composition disposed therein from degradation/damage.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: April 1, 2014
    Assignee: Polestar Technologies, Inc.
    Inventor: James A. Kane
  • Patent number: 8628728
    Abstract: A non-invasive, calorimetric infection detector is provided, comprised of a substrate, and one or more indicator compositions disposed upon or incorporated therein. These indicator compositions exhibit a persistent change color when exposed to gaseous oxides of nitrogen and acids formed therefrom, providing a means of detecting NO production in a wound, which has been found to occur at a high level at the onset of infection in a wound. In addition, a bandage is provided, comprised of the detector, as well as a porous portion, and preferably a hydrophobic barrier layer to protect the detector from contamination by water and other fluids draining from the wound. The non-invasive, calorimetric infection detector, and bandage containing same, can be utilized to provide a convenient, easily utilized colorimetric means of detecting the onset of wound infection, thereby enabling caregivers to effectively and timely treat infections.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: January 14, 2014
    Assignee: Polestar Technologies, Inc.
    Inventors: James A Kane, Melissa Ricci, Ranganathan Shashidhar
  • Patent number: 8552401
    Abstract: An optical chemical sensor feedback control system is provided comprised of a luminescent sensing film, an optical processor adjacent the sensing film capable of sinusoidally photoexciting the luminescent sensing film and detecting the luminescent emission resulting therefrom, and a computer control means executing a computer program, in communication with the optical processor. The computer control means is operable to control the magnitude of the photoexcitation of the luminescent sensing film, wherein the computer control means receives data regarding the luminescent emission resulting therefrom, analyzes same, and determines the magnitude and phase shift of the luminescence relative to the photoexcitation. Further, the system herein is operable to determine the status of the sensing film, and adjust the magnitude of photoexcitation thereof based on same.
    Type: Grant
    Filed: January 5, 2009
    Date of Patent: October 8, 2013
    Assignee: Polestar Technologies, Inc.
    Inventor: James A Kane
  • Patent number: 8415624
    Abstract: A method and system for detection and identification of concealed materials, is provided, wherein a dark image and two or more NIR sample images are taken at two or more key wavelengths or bands of wavelengths corresponding to peaks and/or valleys in the NIR spectra of known materials, and differential wavelength imaging processes are used to produce a differential wavelength image based on therein. The differential wavelength image is then analyzed/processed so as to detect any materials concealed on the target of interest, such as a human or piece of baggage, by calculation of pixel intensity values in the image and identification of distinctive pixel values. Then, via various methods, the distinctive pixel values of the detected materials are compared to a data set of known wavelengths related to known materials, such as explosives and other contraband. Correspondence thereof results in an accurate identification of the concealed material(s).
    Type: Grant
    Filed: February 25, 2010
    Date of Patent: April 9, 2013
    Assignee: Polestar Technologies, Inc.
    Inventor: Ranganathan Shashidhar
  • Patent number: 8313710
    Abstract: A multilayered optical sensing patch, for the measurement of conditions, such as pH, oxygen level, etc, within containers, is provided. The multilayered optical sensing patch of the present invention is comprised of a heat sealable polymer substrate layer, and a polymeric sensing membrane later attached thereto. The polymer sensing membrane layer is formed of a porous polymer support membrane, and an optical sensing composition (comprising a reactive indicator) covalently bonded thereto. The heat sealable polymer substrate layer is capable of being securely bonded to the inner layer of bioreactor bags, as well as the porous polymer support substrate layer. Further, the porous polymer support membrane layer provides a firm supporting structure for the polymeric sensing layer, thereby protecting the optical sensing composition disposed therein from degradation/damage.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: November 20, 2012
    Assignee: Polestar Technologies, Inc.
    Inventor: James A Kane
  • Patent number: 8313633
    Abstract: A molecular recognition sensor system is provided incorporating a molecular imprinted nanosensor device formed by the process steps of: (a) fabricating using photolithography a pair of metallic electrodes separated by a microscale gap onto a first electrical insulation layer formed on a substrate; (b) applying a second electrical insulation layer on most of a top surface of said pairs of electrodes; (c) depositing additional metallic electrode material onto said electrode pairs using electrochemical deposition, thereby decreasing said microgap to a nano sized gap between said electrode pairs; (d) electrochemically polymerizing in said nanogap conductive monomers containing a target analyte, thereby forming a conducting polymer nanojunction in the gap between electrode pairs; and (e) immersing resultant sensor device in a solution which removes away the target analyte, and intermittently applying a voltage to the conducting polymer while it is immersed in said solution, thereby swelling and shrinking the co
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: November 20, 2012
    Assignee: Polestar Technologies, Inc.
    Inventors: Xiulan Li, Ranganathan Shashidhar, Yufeng Ma
  • Publication number: 20100278441
    Abstract: A method and system for detection and identification of concealed materials, is provided, wherein a dark image and two or more NIR sample images are taken at two or more key wavelengths or bands of wavelengths corresponding to peaks and/or valleys in the NIR spectra of known materials, and differential wavelength imaging processes are used to produce a a differential wavelength image based on therein. The differential wavelength image is then analyzed/processed so as to detect any materials concealed on the target of interest, such as a human or piece of baggage, by calculation of pixel intensity values in the image and identification of distinctive pixel values. Then, via various methods, the distinctive pixel values of the detected materials are compared to a data set of known wavelengths related to known materials, such as explosives and other contraband. Correspondence thereof results in an accurate identification of the concealed material(s).
    Type: Application
    Filed: February 25, 2010
    Publication date: November 4, 2010
    Applicant: Polestar Technologies, Inc.
    Inventor: Ranganathan Shashidhar
  • Publication number: 20080286155
    Abstract: A multilayered optical sensing patch, for the measurement of conditions, such as pH, oxygen level, etc, within containers, is provided. The multilayered optical sensing patch of the present invention is comprised of a heat sealable polymer substrate layer, and a polymeric sensing membrane later attached thereto. The polymer sensing membrane layer is formed of a porous polymer support membrane, and an optical sensing composition (comprising a reactive indicator) covalently bonded thereto. The heat sealable polymer substrate layer is capable of being securely bonded to the inner layer of bioreactor bags, as well as the porous polymer support substrate layer. Further, the porous polymer support membrane layer provides a firm supporting structure for the polymeric sensing layer, thereby protecting the optical sensing composition disposed therein from degradation/damage.
    Type: Application
    Filed: May 16, 2008
    Publication date: November 20, 2008
    Applicant: Polestar Technologies, Inc.
    Inventor: James A. Kane
  • Patent number: 6304767
    Abstract: The invention provides an optical method and apparatus for non-invasively determining blood hematocrit. The method includes the step of first irradiating blood with optical radiation. Radiation reflected or transmitted from the blood is then collected to determine an optical spectrum. Hematocrit is then determined by comparing this spectrum to a mathmatical model relating optical properties to blood Hematocrit.
    Type: Grant
    Filed: December 1, 1999
    Date of Patent: October 16, 2001
    Assignees: Polestar Technologies, Inc., University of Massachusetts
    Inventors: Babs R. Soller, Ronald H. Micheels
  • Patent number: 6006119
    Abstract: The invention provides an optical method and apparatus for non-invasively determining blood hematocrit. The method includes the step of first irradiating blood with optical radiation. Radiation reflected or transmitted from the blood is then collected to determine an optical spectrum. Hematocrit is then determined by comparing this spectrum to a mathematical model relating optical properties to blood Hematocrit.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: December 21, 1999
    Assignees: Polestar Technologies, Inc., University of Massachusetts
    Inventors: Babs R. Soller, Ronald H. Micheels
  • Patent number: 5957858
    Abstract: Method and system for measuring the relative concentrations of first and second isotopic forms of a chemical species within a sample. The present invention need not use a laser or high resolution spectrometer. The system typically includes a waveguide cell with good transmission of particular wavelengths of IR radiation, such as a hollow glass fiber waveguide cell. A source emits electromagnetic radiation, which is modulated at first and second wavelength bands that correspond to absorption bands of the first and second isotopic forms of the chemical species, respectively. In certain embodiments, the source is a filtered broad band source, such as a plurality of LEDs. In some embodiments, an FTIR spectrometer may serve as a filtered source and signal detector.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: September 28, 1999
    Assignee: Polestar Technologies, Inc.
    Inventors: Ronald H. Micheels, Jonathan D. Kaunitz