Patents by Inventor John L. Daschbach

John L. Daschbach 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).

  • Structure having spatially separated photo-excitable electron-hole pairs and method of manufacturing same
    Patent number: 7094675
    Abstract: A method for producing quantum dots. The method includes cleaning an oxide substrate and separately cleaning a metal source. The substrate is then heated and exposed to the source in an oxygen environment. This causes metal oxide quantum dots to form on the surface of the substrate.
    Type: Grant
    Filed: January 10, 2003
    Date of Patent: August 22, 2006
    Assignee: Battelle Memorial Institute
    Inventors: Yong Liang, John L. Daschbach, Yali Su, Scott A. Chambers
  • Structure having spatially separated photo-excitable electron-hole pairs and method of manufacturing same
    Publication number: 20030146431
    Abstract: A method for producing quantum dots. The method includes cleaning an oxide substrate and separately cleaning a metal source. The substrate is then heated and exposed to the source in an oxygen environment. This causes metal oxide quantum dots to form on the surface of the substrate.
    Type: Application
    Filed: January 10, 2003
    Publication date: August 7, 2003
    Inventors: Yong Liang, John L. Daschbach, Yali Su, Scott A. Chambers
  • Structure having spatially separated photo-excitable electron-hole pairs and method of manufacturing same
    Patent number: 6534782
    Abstract: A method for producing quantum dots. The method includes cleaning an oxide substrate and separately cleaning a metal source. The substrate is then heated and exposed to the source in an oxygen environment. This causes metal oxide quantum dots to form on the surface of the substrate.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: March 18, 2003
    Assignee: Battelle Memorial Institute
    Inventors: Yong Liang, John L. Daschbach, Yali Su, Scott A. Chambers
  • Photoacoustic spectroscopy apparatus and method
    Patent number: 6348968
    Abstract: The invention encompasses photoacoustic apparatuses and photoacoustic spectrometry methods. The invention also encompasses sample cells for photoacoustic spectrometry, and sample cell/transducer constructions. In one aspect, the invention encompasses a photoacoustic spectroscopy apparatus, comprising: a) a sample reservoir and an acoustically-stimulable transducer acoustically coupled with the sample reservoir, the transducer comprising a detector surface having a substantially planar portion; and b) a beam of light configured to be directed through the sample at an angle oblique relative to the substantially planar portion of the detector surface to generate sound waves in the sample.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: February 19, 2002
    Assignee: Battelle Memorial Institute
    Inventors: Tom Autrey, John L. Daschbach, James E. Amonette, Nancy S. Foster-Mills
  • Photoacoustic spectroscopy apparatus and method
    Publication number: 20010022657
    Abstract: The invention encompasses photoacoustic apparatuses and photoacoustic spectrometry methods. The invention also encompasses sample cells for photoacoustic spectrometry, and sample cell/transducer constructions. In one aspect, the invention encompasses a photoacoustic spectroscopy apparatus, comprising: a) a sample reservoir and an acoustically-stimulable transducer acoustically coupled with the sample reservoir, the transducer comprising a detector surface having a substantially planar portion; and b) a beam of light configured to be directed through the sample at an angle oblique relative to the substantially planar portion of the detector surface to generate sound waves in the sample.
    Type: Application
    Filed: March 30, 2001
    Publication date: September 20, 2001
    Inventors: Tom Autrey, John L. Daschbach, James E. Amonette, Nancy S. Foster-Mills
  • Photoacoustic spectroscopy sample cells and methods of photoacoustic spectroscopy
    Patent number: 6236455
    Abstract: The invention encompasses photoacoustic apparatuses and photoacoustic spectrometry methods. The invention also encompasses sample cells for photoacoustic spectrometry, and sample cell/transducer constructions. In one aspect, the invention encompasses a photoacoustic spectroscopy apparatus, comprising: a) a sample reservoir and an acoustically-stimulable transducer acoustically coupled with the sample reservoir, the transducer comprising a detector surface having a substantially planar portion; and b) a beam of light configured to be directed through the sample at an angle oblique relative to the substantially planar portion of the detector surface to generate sound waves in the sample.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: May 22, 2001
    Assignee: Battelle Memorial Institute
    Inventors: S. Tom Autrey, John L. Daschbach, James E. Amonette, Nancy S. Foster-Mills