Patents by Inventor Scott Thomas Sanders

Scott Thomas Sanders 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).

  • Combustion gas sensor assembly for engine control
    Patent number: 9933335
    Abstract: An optical sensor for sensing combustion products avoids fouling and damage to optical components by using a “windowless” design in which an air curtain through an orifice provides a constantly refreshing transparent shield protecting the optical components from corrosive combustion gases and resisting the accumulation of particulates that might otherwise foul a static window.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 3, 2018
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Scott Thomas Sanders
  • Combustion Gas Sensor Assembly for Engine Control
    Publication number: 20170363513
    Abstract: An optical sensor for sensing combustion products avoids fouling and damage to optical components by using a “windowless” design in which an air curtain through an orifice provides a constantly refreshing transparent shield protecting the optical components from corrosive combustion gases and resisting the accumulation of particulates that might otherwise foul a static window.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 21, 2017
    Inventor: Scott Thomas Sanders
  • Monolithic Fiber Optic Sensor Assembly
    Publication number: 20130194571
    Abstract: A remote sensor element for spectrographic measurements employs a monolithic assembly of one or two fiber optics to two optical elements separated by a supporting structure to allow the flow of gases or particulates therebetween. In a preferred embodiment, the sensor element components are fused ceramic to resist high temperatures and failure from large temperature changes.
    Type: Application
    Filed: February 1, 2012
    Publication date: August 1, 2013
    Inventor: Scott Thomas Sanders
  • Background-free absorption spectroscopy using spectral differentiator
    Patent number: 8149415
    Abstract: An absorption spectrometer provides improved rejection of background radiation signal by employing a frequency-swept laser signal without frequency dithering and performing an effective differentiation of output light from a test cell to eliminate these constant or slowly varying background radiation levels.
    Type: Grant
    Filed: February 3, 2010
    Date of Patent: April 3, 2012
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Scott Thomas Sanders, Thilo Kraetschmer
  • Background-Free Absorption Spectroscopy Using Spectral Differentiator
    Publication number: 20110188046
    Abstract: An absorption spectrometer provides improved rejection of background radiation signal by employing a frequency-swept laser signal without frequency dithering and performing an effective differentiation of output light from a test cell to eliminate these constant or slowly varying background radiation levels.
    Type: Application
    Filed: February 3, 2010
    Publication date: August 4, 2011
    Inventors: Scott Thomas Sanders, Thilo Kraetschmer
  • Multi-spectral laser source employing periodically poled crystal mixer
    Patent number: 7889769
    Abstract: A multi-spectral laser system produces first and second output frequencies by nonlinear mixing of a first, second, and third laser light frequency in a single periodically polled crystal, where the first and second output frequencies are separated by a range greater than the degeneracy of the crystal.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: February 15, 2011
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Scott Thomas Sanders
  • MULTI-SPECTRAL LASER SOURCE EMPLOYING PERIODICALLY POLED CRYSTAL MIXER
    Publication number: 20100329291
    Abstract: A multi-spectral laser system produces first and second output frequencies by nonlinear mixing of a first, second, and third laser light frequency in a single periodically polled crystal, where the first and second output frequencies are separated by a range greater than the degeneracy of the crystal.
    Type: Application
    Filed: June 26, 2009
    Publication date: December 30, 2010
    Inventor: Scott Thomas Sanders
  • Multispectral laser with improved time division multiplexing
    Patent number: 7633977
    Abstract: A laser provides a cavity with complementary wavelength-dependent delay elements to provide the same optical length but time-staggered light paths for different colors. This provides the ability to individually control multiple narrow bands of colors each in a separate time division window.
    Type: Grant
    Filed: August 8, 2007
    Date of Patent: December 15, 2009
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Scott Thomas Sanders, Thilo Kraetschmer
  • Multi-wavelength mode locked laser
    Patent number: 7613214
    Abstract: A mode-locked laser employs a light-wavelength-dependent, path-length adjuster to provide different path-lengths for multiple light frequencies and dual modulation frequencies selecting multiple modes with different wavelengths. The result is a single cavity laser producing mode-locked light outputs at defined different frequencies. Tuning of each frequency may be obtained by changing the laser modulation frequencies.
    Type: Grant
    Filed: May 16, 2007
    Date of Patent: November 3, 2009
    Assignee: Wisconsin Alumni Research Foundation
    Inventor: Scott Thomas Sanders
  • MULTISPECTRAL LASER WITH IMPROVED TIME DIVISION MULTIPLEXING
    Publication number: 20090041465
    Abstract: A laser provides a cavity with complementary wavelength-dependent delay elements to provide the same optical length but time-staggered light paths for different colors. This provides the ability to individually control multiple narrow bands of colors each in a separate time division window.
    Type: Application
    Filed: August 8, 2007
    Publication date: February 12, 2009
    Inventor: Scott Thomas Sanders
  • MULTI-WAVELENGTH MODE LOCKED LASER
    Publication number: 20080285037
    Abstract: A mode-locked laser employs a light-wavelength-dependent, path-length adjuster to provide different path-lengths for multiple light frequencies and dual modulation frequencies selecting multiple modes with different wavelengths. The result is a single cavity laser producing mode-locked light outputs at defined different frequencies. Tuning of each frequency may be obtained by changing the laser modulation frequencies.
    Type: Application
    Filed: May 16, 2007
    Publication date: November 20, 2008
    Inventor: Scott Thomas Sanders
  • Super-continuum UV source
    Patent number: 7196839
    Abstract: An ultraviolet super-continuum source with a fiber-optic may be provided with direct stimulation by a laser having a relatively narrow bandwidth, for example, less than the typical Raman shift in the material of the optical fiber to provide a super-continuum source extending for wavelengths below 400 nanometers.
    Type: Grant
    Filed: February 8, 2006
    Date of Patent: March 27, 2007
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Scott Thomas Sanders, Joachim Werner Walewski