Patents by Inventor M. Amir Khan

M. Amir Khan 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).

  • Multi-harmonic inline reference cell for optical trace gas sensing
    Patent number: 8970842
    Abstract: A spectroscopic sensor and a spectroscopic method of determining a concentration of a sample are disclosed. The sensor is used in connection with a sample cell containing a sample. The sensor includes a coherent light source configured to transmit an interrogation light beam along an optical sample path directed towards the sample. The sensor also includes an in-line reference cell located in the sample path. The sensor also includes a detector having outputs responsive to absorption signals from the sample and the in-line reference cell. The sensor also includes a processor configured to isolate the reference absorption signals from the in-line reference cell and sample absorption signals from the sample cell and generate calibration information based on the reference absorption signals and determine a concentration of the sample based on the sample absorption signals.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: March 3, 2015
    Assignee: The Trustees of Princeton University
    Inventors: Kang Sun, Lei Tao, David Miller, M. Amir Khan, Mark A. Zondlo
  • MULTI-HARMONIC INLINE REFERENCE CELL FOR OPTICAL TRACE GAS SENSING
    Publication number: 20140049777
    Abstract: A spectroscopic sensor and a spectroscopic method of determining a concentration of a sample are disclosed. The sensor is used in connection with a sample cell containing a sample. The sensor includes a coherent light source configured to transmit an interrogation light beam along an optical sample path directed towards the sample. The sensor also includes an in-line reference cell located in the sample path. The sensor also includes a detector having outputs responsive to absorption signals from the sample and the in-line reference cell. The sensor also includes a processor configured to isolate the reference absorption signals from the in-line reference cell and sample absorption signals from the sample cell and generate calibration information based on the reference absorption signals and determine a concentration of the sample based on the sample absorption signals.
    Type: Application
    Filed: August 15, 2013
    Publication date: February 20, 2014
    Applicant: THE TRUSTEES OF PRINCETON UNIVERSITY
    Inventors: Kang Sun, Lei Tao, David Miller, M. Amir Khan, Mark A. Zondlo