Patents by Inventor Karen M. Nashold

Karen M. Nashold 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).

  • Optical microneedle-based spectrometer
    Patent number: 8452356
    Abstract: Optical microneedles are adapted for near-infrared or mid-infrared in vivo spectroscopic sensing; and provide a MEMS-based spectrometer for continuous lactate and glucose monitoring by means of a near-infrared or mid-infrared optical microneedle array in a transdermal patch.
    Type: Grant
    Filed: May 2, 2009
    Date of Patent: May 28, 2013
    Assignee: SRI International
    Inventors: Michael J. Vestel, Karen M. Nashold, Joseph R. Stetter, Diane P. Walter, Gregory W. Faris, Christopher Holland, Roger Schmidt
  • Optical Microneedle-Based Spectrometer
    Publication number: 20100121163
    Abstract: Optical microneedles are adapted for near-infrared or mid-infrared in vivo spectroscopic sensing; and provide a MEMS-based spectrometer for continuous lactate and glucose monitoring by means of a near-infrared or mid-infrared optical microneedle array in a transdermal patch.
    Type: Application
    Filed: May 2, 2009
    Publication date: May 13, 2010
    Inventors: Michael J. Vestel, Karen M. Nashold, Joseph R. Stetter, Diane P. Walter, Gregory W. Faris, Chistopher Holland, Roger Schmidt
  • Method and apparatus for limiting optical radiation intensity at an optical sensor using solid particles oscillating in an electric field
    Patent number: 5280169
    Abstract: Method and apparatus for limiting optical radiation to an optical sensor are disclosed for protecting the sensor against damage from high intensity optical radiation. A fixed electric field is established between a pair of spaced electrodes by connection of the electrodes to a DC voltage source. Small solid particles oscillate back and forth in the electric field between the electrodes. Incident optical radiation is focused at a focal plane at the oscillating solid particles, and energy transmitted through the oscillating particles is focused at the optical sensor. The transmittance of the particle-containing space is substantially constant for incident optical radiation intensity up to a threshold level below which the sensor is undamaged by the radiation.
    Type: Grant
    Filed: December 22, 1992
    Date of Patent: January 18, 1994
    Inventors: Richard C. Honey, Robert A. Brown, Karen M. Nashold, Richard C. Adamo