Patents by Inventor Thomas Kirchstetter

Thomas Kirchstetter 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).

  • Air pollution sensor to measure major carbon components in the environment
    Patent number: 11320411
    Abstract: The invention relates to a device for measuring, in near-real-time, the level of black carbon, brown carbon, organic carbon, total carbon and CO2 in air. The device also provides for a direct calculation of aerosol angstrom coefficient as well as estimation of emissions rates of black carbon or brown carbon from nearby combustion sources.
    Type: Grant
    Filed: February 28, 2019
    Date of Patent: May 3, 2022
    Assignees: GOVERNMENT OF THE UNITED STATES AS REPRESENTED BY THE ADMINISTRATOR OF THE U.S. ENVIRONMENTAL PROTECTION AGENCY, THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Paul A. Solomon, Thomas Kirchstetter
  • AIR POLLUTION SENSOR TO MEASURE MAJOR CARBON COMPONENTS IN THE ENVIRONMENT
    Publication number: 20190277819
    Abstract: The invention relates to a device for measuring, in near-real-time, the level of black carbon, brown carbon, organic carbon, total carbon and CO2 in air. The device also provides for a direct calculation of aerosol angstrom coefficient as well as estimation of emissions rates of black carbon or brown carbon from nearby combustion sources.
    Type: Application
    Filed: February 28, 2019
    Publication date: September 12, 2019
    Applicant: Government of the United States as Represented by The Administrator of the U.S.Environmental Protect
    Inventors: Paul A. SOLOMON, Thomas KIRCHSTETTER
  • Mixture and method for simulating soiling and weathering of surfaces
    Patent number: 9856383
    Abstract: This disclosure provides systems, methods, and apparatus related to simulated soiling and weathering of materials. In one aspect, a soiling mixture may include an aqueous suspension of various amounts of salt, soot, dust, and humic acid. In another aspect, a method may include weathering a sample of material in a first exposure of the sample to ultraviolet light, water vapor, and elevated temperatures, depositing a soiling mixture on the sample, and weathering the sample in a second exposure of the sample to ultraviolet light, water vapor, and elevated temperatures.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: January 2, 2018
    Assignee: The Regents of the University of California
    Inventors: Mohamad Sleiman, Thomas Kirchstetter, Hugo Destaillats, Ronnen Levinson, Paul Berdahl, Hashem Akbari
  • MIXTURE AND METHOD FOR SIMULATING SOILING AND WEATHERING OF SURFACES
    Publication number: 20130287966
    Abstract: This disclosure provides systems, methods, and apparatus related to simulated soiling and weathering of materials. In one aspect, a soiling mixture may include an aqueous suspension of various amounts of salt, soot, dust, and humic acid. In another aspect, a method may include weathering a sample of material in a first exposure of the sample to ultraviolet light, water vapor, and elevated temperatures, depositing a soiling mixture on the sample, and weathering the sample in a second exposure of the sample to ultraviolet light, water vapor, and elevated temperatures.
    Type: Application
    Filed: March 14, 2013
    Publication date: October 31, 2013
    Applicant: The Regents of the University of California
    Inventors: Mohamad Sleiman, Thomas Kirchstetter, Hugo Destaillats, Ronnen Levinson, Paul Berdahl, Hashem Akbari