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Patents

Method for the Detection of Salmonella enterica serovar Enteritidis
Peter G. Agron, Gary L. Andersen, Richard L. Walker
U.S. Patent 7,442,517 B2
October 28, 2008
A novel Salmonella enterica serovar Enteritidis locus serves as a marker for DNA-based identification of this bacterium. Three primer pairs derived from this locus may be used in a nucleotide detection method to detect the presence of the bacterium.

Superconducting Gamma and Fast-Neutron Spectrometers with High Energy Resolution
Stephan Friedrich, Thomas R. Niedermayr, Simon E. Labov
U.S. Patent 7,446,314 B2
November 4, 2008
These superconducting gamma-ray and fast-neutron spectrometers with very high energy resolution can be operated at very low temperatures. A sensor with a bulk absorber and a superconducting thermometer weakly coupled to a cold reservoir determines the energy of the incident particle from the increase in temperature that occurs with absorption. A superconducting film operated at the transition between its superconducting and normal states is used as the thermometer. Sensor operation at reservoir temperatures of about 0.1 kelvins reduces thermal fluctuations and thus enables very high energy resolution. The spectrometer can be configured as either a gamma-ray or a fast-neutron spectrometer, depending on the absorber material used.

Synthesis of DNA
Raymond P. Mariella, Jr.
U.S. Patent 7,452,666 B2
November 18, 2008
This method synthesizes a specific length of double-stranded DNA in a specified sequence. The segments that will complete the sequence are selected and assembled to produce the desired double-stranded DNA.

Time Reversal Communication System
James V. Candy, Alan W. Meyer
U.S. Patent 7,460,605 B2
December 2, 2008
This system digitizes a signal and then time-reverses it, so it can be transmitted through a channel medium. The channel medium may be air, earth, water, tissue, metal, or a nonmetal material.

Material for Electrodes of Low Temperature Plasma Generators
Malcolm Caplan, SergeI Evgeévich Vinogradov, Valeri Vasilévich Ribin, Valentin Ivanovich Shekalov, Philip Grigorévich Rutberg, Alexi Anatolévich Safronov
U.S. Patent 7,462,089 B2
December 9, 2008
A material for electrodes of low-temperature plasma generators contains a porous metal matrix impregnated with a material that emits electrons. A mixture of copper and iron powders used as a porous metal matrix is combined with a Group IIIB metal component such as yttrium oxide (Y2O3), with components in various proportions, such as iron from 3 to 30 percent by mass, Y2O3 from 0.05 to 1 percent, and copper the remainder. Copper provides a high level of heat conduction and electric conductance. Iron decreases the intensity of copper evaporation during plasma creation, which increases the material’s strength and lifetime. Yttrium oxide decreases the electronic work function and stabilizes arc burning. The material will produce electrodes in low-temperature, alternating-current plasma generators, which are used to dispose of liquid organic, medical, and municipal wastes; to decontaminate low-level radioactive waste; and to destroy chemical weapons and toxic warfare agents.

Silicone Metalization
Mariam N. Maghribi, Peter Krulevitch, Julie Hamilton
U.S. Patent 7,462,518 B2
December 9, 2008
This system provides a silicone layer on a matrix and a metal layer on the silicone layer to produce an electronic apparatus. The apparatus has metal features on the silicone body to provide an electronic device.

Gain Media Edge Treatment to Suppress Amplified Spontaneous Emission in a High Power Laser
Lloyd A. Hackel, Thomas E. Soules, Scott N. Fochs, Mark D. Rotter, Stephan A. Letts
U.S. Patent 7,463,660 B2
December 9, 2008
This apparatus suppresses amplified spontaneous emission and parasitic oscillation modes in a high-average-power laser. One or more peripheral edges of a solid-state crystal or ceramic laser gain media are roughened. A high-index bonding elastomer or epoxy is then used to bond the edges to an electromagnetic-absorbing material adjacent to the outer surface of the roughened media.

Multi-Channel Time-Reversal Receivers for Multi and 1-Bit Implementations
James V. Candy, David H. Chambers, Brian L. Guidry, Andrew J. Poggio, Christopher L. Robbins
U.S. Patent 7,463,690 B2
December 9, 2008
A communication system for transmitting a signal through a channel medium digitizes and time-reverses a signal. One arrangement uses a transmitter, multiple receivers, a digitizer, and a time-reversal signal processor. Other setups have one- or multi-bit implementations. Multiple receivers can also be used to transmit the signal through the channel medium.

Liquid Class Predictor for Liquid Handling of Complex Mixtures
Brent W. Segelke, Timothy P. Lekin
U.S. Patent 7,463,982 B2
December 9, 2008
This method establishes liquid classes of complex mixtures for liquid-handling equipment. A response curve for the mixture components is used to prepare a response indicator for the mixtures. A model is then derived to relate the components and mixtures and establish the liquid classes.


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