Patents by Inventor Mark J. Feldstein

Mark J. Feldstein 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).

  • FLUIDICS SYSTEM
    Publication number: 20090035872
    Abstract: The present invention provides a fluidics system and a method for selectively drawing fluid from at least one selected reservoir into a channel by providing a negative pressure source downstream of the fluid and channel and selectively back filling the selected reservoir with a gas.
    Type: Application
    Filed: October 14, 2008
    Publication date: February 5, 2009
    Applicant: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventor: Mark J. Feldstein
  • Fluidics system
    Patent number: 7384605
    Abstract: The present invention provides a fluidics system and a method for selectively drawing fluid from at least one selected reservoir into a channel by providing a negative pressure source downstream of the fluid and channel and selectively back filling the selected reservoir with a gas.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: June 10, 2008
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Mark J. Feldstein
  • Fluidics system
    Publication number: 20020031836
    Abstract: The present invention provides a fluidics system and a method for selectively drawing fluid from at least one selected reservoir into a channel by providing a negative pressure source downstream of the fluid and channel and selectively back filling the selected reservoir with a gas.
    Type: Application
    Filed: July 31, 2001
    Publication date: March 14, 2002
    Inventor: Mark J. Feldstein
  • Reflectively coated optical waveguide and fluidics cell integration
    Patent number: 6192168
    Abstract: A multimode waveguide device for assays includes a multimode waveguide with a patterned, reflective surface coating. The exposed portion or portions of the reflectively coated waveguide surface are for analyte recognition. A fluidics cell is attached to the waveguide so that the channel or channels of the fluidics cell match with the exposed portion or portions of the waveguide surface. The channel or channels direct one or more sample fluids over the exposed portion or portions of the waveguide surface. The reflective coating minimizes loss and scattering of excitation and fluorescence light during a fluorescence assay.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: February 20, 2001
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Mark J. Feldstein, Joel P. Golden, Frances S. Ligler, Chris A. Rowe
  • Integrating multi-waveguide sensor
    Patent number: 6137117
    Abstract: A waveguide-based sensing system includes a plurality of waveguides secured within a waveguide holder. Each waveguide has a sensing surface with athed analyte recognition elements. The end faces of the sensing surfaces are perpendicular (or at least approximately perpendicular) to the sensing surfaces. The sensing surfaces are directly excited by light directed normal thereto and emit optical signals responsive to the presence of an analyte. These optical signals are coupled into the waveguides. The optical signals travel along the length of the waveguides to the end surfaces, which integrate the optical signals over the length of the waveguides. The integrated optical signals emitted from the end surfaces of the fibers are then detected and analyzed.
    Type: Grant
    Filed: June 21, 1999
    Date of Patent: October 24, 2000
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Mark J. Feldstein, Brian D. MacCraith, Frances S. Ligler