Patents by Inventor Stanley V. Stepnowski

Stanley V. Stepnowski 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).

  • Actively cooled vapor preconcentrator
    Patent number: 8448532
    Abstract: An analyte collection system device includes an active area that includes a plurality of perforations extending therethrough. The plurality of perforations are arranged to permit passage of an analyte fluid flow through the microscale plate. A heating element is provided for heating the active area, and a thermal distribution layer is disposed over at least a portion of the active area. For cooling the active area at or below an ambient temperature, an active cooler is provided.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: May 28, 2013
    Assignees: The United States of America as represented by the Secretary of the Navy, University of Louisville Research Foundation, Inc.
    Inventors: Michael Martin, Kevin Walsh, Julia Aebersold, R. Andrew McGill, Stanley V. Stepnowski
  • ACTIVELY COOLED VAPOR PRECONCENTRATOR
    Publication number: 20100236341
    Abstract: An analyte collection system device includes an active area that includes a plurality of perforations extending therethrough. The plurality of perforations are arranged to permit passage of an analyte fluid flow through the microscale plate. A heating element is provided for heating the active area, and a thermal distribution layer is disposed over at least a portion of the active area. For cooling the active area at or below an ambient temperature, an active cooler is provided.
    Type: Application
    Filed: March 18, 2009
    Publication date: September 23, 2010
    Inventors: Michael Martin, Kevin Walsh, Julia Aebersold, R. Andrew McGill, Stanley V. Stepnowski
  • System and method for optical interrogation of micro-mechanical sensors using microcavity interferometry
    Patent number: 7673517
    Abstract: A sensor and a method for sensing a change in mass of a reflective microbeam in a sensor, the sensor having a reflective layer disposed on a substrate and spaced apart from the reflective microbeam. The microbeam receives amplitude modulated laser energy at a first wavelength and is photothermally excited into resonance at the frequency of amplitude modulation, the reflective microbridge and the reflective layer receive optical energy at a second wavelength and reflect the optical energy toward a receiver. A change in reflectivity of the microbeam at different frequencies is determined. A change in reflectivity indicates a change in resonant frequency of the microbeam. Mass of the microbeam changes when a chemoselective material on the microbeam sorbs a target chemical.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: March 9, 2010
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Todd H. Stievater, William S Rabinovich, Eric J Houser, Stanley V. Stepnowski, R Andrew McGill
  • Miniature particle and vapor collector
    Patent number: 7140265
    Abstract: An apparatus for collecting particles or vapor from air or surfaces comprising: a housing comprising an inlet open to the air to be sampled and an outlet; and a fan having one or more open areas within the housing capable of being driven at a speed effective to cause collection on the surface of the fan of particles or vapor in the air. A method of collecting a particulate sample from air comprising the step of driving a fan having one or more open areas within a housing comprising an inlet open to the air to be sampled and an outlet, at a speed effective to cause collection on the surface of the fan of particles in the air.
    Type: Grant
    Filed: March 6, 2003
    Date of Patent: November 28, 2006
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert A. McGill, Jennifer L. Stepnowski, Stanley V. Stepnowski, Viet Nguyen, Russell Chung, Eric J. Houser, Stephen C. Francesconi, Ronald L. Kelly
  • Miniature particle and vapor collector
    Publication number: 20030230152
    Abstract: An apparatus for collecting particles or vapor from air or surfaces comprising: a housing comprising an inlet open to the air to be sampled and an outlet; and a fan having one or more open areas within the housing capable of being driven at a speed effective to cause collection on the surface of the fan of particles or vapor in the air. A method of collecting a particulate sample from air comprising the step of driving a fan having one or more open areas within a housing comprising an inlet open to the air to be sampled and an outlet, at a speed effective to cause collection on the surface of the fan of particles in the air.
    Type: Application
    Filed: March 6, 2003
    Publication date: December 18, 2003
    Inventors: Robert A. McGill, Jennifer L. Stepnowski, Stanley V. Stepnowski, Viet Nguyen, Russell Chung, Eric J. Houser, Stephen C. Francesconi, Ronald L. Kelly