Patents by Inventor David R. Kohler

David R. Kohler 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: 20110049390
    Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.
    Type: Application
    Filed: November 4, 2010
    Publication date: March 3, 2011
    Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
  • Patent number: 7830515
    Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.
    Type: Grant
    Filed: June 18, 2008
    Date of Patent: November 9, 2010
    Assignee: The Johns Hopkins University
    Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
  • Patent number: 7494769
    Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: February 24, 2009
    Assignee: The Johns Hopkins University
    Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
  • Publication number: 20080254502
    Abstract: A method and apparatus for evaluating a bioaerosol sample is provided which includes detecting frequency and/or time resolution factors that allow discriminate between a plurality of signals emitted by the bioaerosol to selectively detect biological materials contained in the bioaerosol sample from materials of non-biological origin and potentially associated with a pathogenic bioaerosol.
    Type: Application
    Filed: June 18, 2008
    Publication date: October 16, 2008
    Inventors: George M. Murray, Cheryl S. Schein, David R. Kohler, Jennifer L. Sample, Jennifer A. Nix, Protagoras N. Cutchis, Adam K. Arabian, Harvey W. Ko, Micah A. Carlson, Michael P. McLoughlin
  • Patent number: 6969605
    Abstract: A hand held, self-contained, automatic, low power and rapid sensor platform for detecting and quantifying a plurality of analytes. A sample solution potentially containing an unknown amount of an analyte is passed through an affinity column which contains antibodies to which the analyte binds thereby extracting the analyte. The affinity column is then rinsed to remove any other chemicals that may fluoresce. The rinsed affinity column is then eluted with a known volume of elution fluid causing the analyte to release from the antibody and dissolve in the fluid (eluant). The eluant is then placed in the quartz cuvette of a fluorometer. The analyte suspended in the eluant fluoresces at a waveband which is different than that of the light source that excites it. The amount of fluorescence is measured and the level of analyte determined.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: November 29, 2005
    Assignee: The Johns Hopkins University
    Inventors: Charles W. Anderson, C. Brent Bargeron, Richard C. Benson, Micah A. Carlson, Allan B. Fraser, John D. Groopman, Harvey W. Ko, David R. Kohler, Terry E. Phillips, Paul T. Strickland
  • Publication number: 20010053556
    Abstract: A hand held, self-contained, automatic, low power and rapid sensor platform for detecting and quantifying a plurality of analytes. A sample solution potentially containing an unknown amount of an analyte is passed through an affinity column which contains antibodies to which the analyte binds thereby extracting the analyte. The affinity column is then rinsed to remove any other chemicals that may fluoresce. The rinsed affinity column is then eluted with a known volume of elution fluid causing the analyte to release from the antibody and dissolve in the fluid (eluant). The eluant is then placed in the quartz cuvette of a fluorometer. The analyte suspended in the eluant fluoresces at a waveband which is different than that of the light source that excites it. The amount of fluorescence is measured and the level of analyte determined.
    Type: Application
    Filed: July 16, 2001
    Publication date: December 20, 2001
    Inventors: Charles W. Anderson, C. Brent Bargeron, Richard C. Benson, Micah A. Carlson, Allan B. Fraser, John D. Groopman, Harvey W. Ko, David R. Kohler, Terry E. Phillips, Paul T. Strickland
  • Patent number: 6261848
    Abstract: A hand held, self-contained, automatic, low power and rapid sensor platform for detecting and quantifying a plurality of analytes. A sample solution potentially containing an unknown amount of an analyte is passed through an affinity column which contains antibodies to which the analyte binds thereby extracting the analyte. The affinity column is then rinsed to remove any other chemicals that may fluoresce. The rinsed affinity column is then eluted with a known volume of elution fluid causing the analyte to release from the antibody and dissolve in the fluid (eluant). The eluant is then placed in the quartz cuvette of a fluorometer. The analyte suspended in the eluant fluoresces at a waveband which is different than that of the light source that excites it. The amount of fluorescence is measured and the level of analyte determined.
    Type: Grant
    Filed: May 8, 1998
    Date of Patent: July 17, 2001
    Assignee: The Johns Hopkins University
    Inventors: Charles W. Anderson, C. Brent Bargeron, Richard C. Benson, Micah A. Carlson, Allan B. Fraser, John D. Groopman, Harvey W. Ko, David R. Kohler, Terry E. Phillips, Paul T. Strickland