[Federal Register Volume 63, Number 96 (Tuesday, May 19, 1998)]
[Notices]
[Page 27564]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 98-13194]


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DEPARTMENT OF COMMERCE

National Institute of Standards and Technology


Notice of Government Owned Inventions Available for Licensing

AGENCY: National Institute of Standards and Technology, Commerce.

SUMMARY: The inventions listed below are owned in whole or in part by 
the U.S. Government, as represented by the Department of Commerce. The 
Department of Commerce's ownership interest in the inventions are 
available for licensing in accordance with 35 U.S.C. 207 and 37 CFR 
Part 404 to achieve expeditious commercialization of results of 
Federally funded research and development.

FOR FURTHER INFORMATION CONTACT:
Technical and licensing information on these inventions may be obtained 
by writing to: National Institute of Standards and Technology, 
Industrial Partnerships Program, Building 820, Room 213, Gaithersburg, 
MD 20899; Fax 301-869-2751. Any request for information should include 
the NIST Docket No. and Title for the relevant invention as indicated 
below.

SUPPLEMENTARY INFORMATION: NIST may enter into a Cooperative Research 
and Development Agreement (``CRADA'') with the licensee to perform 
further research on the inventions for purposes of commercialization. 
The inventions available for licensing are:

    NIST Docket Number: 97-026.
    Title: Method and Apparatus for Diffraction Measurement Using A 
Scanning X-Ray Source.
    Abstract: This invention is jointly owned by the U.S. Government, 
as represented by the Secretary of Commerce, and Digiray Corporation. 
The present invention relates to x-ray diffraction measurement by using 
moving x-ray source x-ray diffraction. The invention comprises a 
raster-scanned x-ray source, a specimen, a collimator, and a detector. 
The x-ray source is electronically scanned which allows a complete 
image of the x-ray diffraction characteristics of the specimen to be 
produced. The specimen is placed remote from the x-ray source and the 
detector. The collimator is located directly in front of the detector. 
The x-rays are diffracted by the specimen at certain angles, which 
cause them to travel through the collimator and to the detector. The 
detector may be placed in any radial location relative to the specimen 
in order to take the necessary measurements. The detector can detect 
the intensity and/or the wavelength of the diffracted x-ray. All 
information needed to solve the Bragg equation as well as the Laue 
equations is available. The x-ray source may be scanned electronically 
or mechanically. The present invention is used to perform texture 
analysis and phase identification.

    NIST Docket Number: 96-042.
    Title: High Strength Polymeric Networks Derived (Meth) Acrylate 
Resins With Organoflourine Content and Process For Preparing Same.
    Abstract: Disclosed are fluorinated materials for use in dental 
uses and non-dental uses, e.g., adhesives or coatings. Multifunctional 
monomers and prepolymers with pendant (meth) acrylate groups were 
prepared from epoxide-ring-opening reactions. Resins based on the 
fluorinated monomers and prepolymers with diluent comonomers, were 
photocured as composites with particulate fillers. Fluorine contents of 
the prepolymers ranged from 15 to 65%. Composites with high transverse 
strength (up to 120 MPa), low water sorption (as low as 0.11 mass %) 
and extremely low polymerization shrinkage (as low as 3.4% by volume) 
were obtained. The fluorinated resins may be employed to produce 
hydrophobic dental composite materials with high strength and low 
polymerization shrinkage.

    NIST Docket Number: 96-038US.
    Title: Fractional Phase Measurement By Polarization-Dependent 
Spectroscopy.
    Abstract: The invention provides an inexpensive, noninvasive 
optical method of quantitatively determining the volume fraction of 
anisotroic material in a mixture of anisotropic and isotropic material, 
and more particularly for determining the volume fraction of noncubic 
crystalline material in a mixed-phase specimen having noncubic 
crystalline material intermixed with cubic crystalline material. 
Polarized light is impinged on the specimen and the reflectance or 
transmission difference between two orthogonal polarizations directions 
is measured. In cubic regions the reflectance or transmission is the 
same along both polarization directions so the contributions to the 
difference cancel, leaving a signal only from the noncubic regions. The 
optical difference can be measured as a function of wavelength and 
critical points in the band structure, including the band gap, can be 
profiled. From the band structure the film composition can be 
determined. This measurement is particularly suited to measuring III-V 
nitride semiconductor specimens having regions with zincblende symmetry 
mixed with regions of wurtzite symmetry.

    NIST Docket Number: 96-025
    Title: Broadband, Ultrahigh-Sensitivity Chemical Sensor Based on 
Intra-Cavity Total Reflection.
    Abstract: This NIST invention permits broadband, ultra-sensitive 
measurement of optical absorption for any state of matter by the cavity 
ring-down technique using a small, monolithic, total internal 
reflection ring cavity. It significantly advances the sensitivity, 
accuracy, and adaptability of optical absorption spectroscopy for 
decisive qualitative and quantitative chemical analysis, with greatly 
increased trace analysis capability.

    NIST Docket Number: 95-022.
    Title: A Time Stamp Service for the National Information Network.
    Abstract: This NIST invention consists of a method for applying a 
signed time-stamp to a document in digital format for the purpose of 
proving that the document existed on the date it was signed. Any 
digital-format document can be signed including simple text files, 
binary files, scanned images, etc. The document can be encrypted or 
encoded. The time-stamp is accurate to a few milliseconds, and the 
accuracy is directly traceable to UTC(NIST) in real-time. The signed 
document can be returned to the sender electronically and the document 
can also be forwarded automatically to any number of third parties 
provided only that the third parties are capable of receiving 
electronic mail.

    Dated: May 12, 1998.
Robert E. Hebner,
Acting Deputy Director.
[FR Doc. 98-13194 Filed 5-18-98; 8:45 am]
BILLING CODE 3510-13-M