Patents by Inventor Josephine Hofstetter

Josephine Hofstetter 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).

  • Sampling device for exposure measurement of particles and gases
    Patent number: 11474005
    Abstract: A portable sampling device includes a sampling housing at least partially enclosing an inner chamber; at least one pumping element disposed within the inner chamber and configured to facilitate airflow through the device; and at least one gas sensor disposed within the inner chamber and configured to detect and/or characterize one or more gases in the airflow.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: October 18, 2022
    Assignees: Colorado State University Research Foundation, Access Sensor Technologies LLC
    Inventors: John Volckens, Daniel D. Miller-Lionberg, Josephine Hofstetter, Casey William Quinn, Ellison Carter, David Leith
  • SAMPLING DEVICE FOR EXPOSURE MEASUREMENT OF PARTICLES AND GASES
    Publication number: 20210190646
    Abstract: A portable sampling device includes a sampling housing at least partially enclosing an inner chamber; at least one pumping element disposed within the inner chamber and configured to facilitate airflow through the device; and at least one gas sensor disposed within the inner chamber and configured to detect and/or characterize one or more gases in the airflow.
    Type: Application
    Filed: May 23, 2019
    Publication date: June 24, 2021
    Inventors: John Volckens, Daniel D. Miller-Lionberg, Josephine Hofstetter, Casey William Quinn, Carter Ellison, David Leith
  • Methods and systems for the detection of analytes
    Patent number: 10598625
    Abstract: Provided herein are methods and devices for the detection of analytes. The methods employ particles formed from a first metal conjugated to analytes. The analyte conjugated to the particle formed from the first metal can be accumulated at a working electrode. The first metal can be galvanically exchanged with ions of a second metal to form a layer of the first metal at the working electrode. The first metal can then be electrochemically detected and/or quantified. Using this method, analytes can be detected at low concentrations a few femtomolar via anodic stripping voltammetry, with no washing steps or electrode modifications.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: March 24, 2020
    Assignee: Board of Regents, The University System of Texas
    Inventors: Richard M. Crooks, Ian Richards, Josephine Hofstetter, Molly Kogan, Yi-Ju Tsai, Long Luo