Patents Represented by Attorney, Agent or Law Firm James D. Welch
  • Patent number: 6475471
    Abstract: Disclosed is a method which provides for positioning materials which absorb oral fluids in into controlled, direct contact with at least one dental arch of a subject. The method is particularly applicable to treatment of periodontal gum disease where the material is made from a mixture of bicarbonate of soda, psyllium husk fiber and optionally at least one antimicrobial agent, in combination with a moistening agent and optional flavoring.
    Type: Grant
    Filed: November 3, 2001
    Date of Patent: November 5, 2002
    Inventor: Janet M. Wehrli
  • Patent number: 6457358
    Abstract: Disclosed is a piezoelectric gyroscope which presents as a generally elongated tubular shape having inner and outer radially polarized annular region defining surfaces, with an inner electrode on the inner surface, and four outer electrodes present on the outer surface. The four electrodes present on the outer surface are oriented such that each is in a separate quadrant, (as the piezoelectric gyroscope generally longitudinally elongated essentially tubular structure is viewed in cross-section), and ideally at substantially ninety degree intervals on the outer surface. In use the piezoelectric gyroscope system is caused to rotate about an essentially centrally located longitudinally oriented axis while a flex inducing driving voltage is applied across two of the four electrodes, (driving) electrodes, which are oriented at substantially 180 degrees with respect to one another, while an output voltage is sensed across the other two (sensing), electrodes. Also disclosed are a tuning-fork shaped variations.
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: October 1, 2002
    Assignee: Board of Regents of the University of Nebraska
    Inventor: Jiashi Yang
  • Patent number: 6456376
    Abstract: Disclosed is the application of spatial filter(s) in rotating compensator ellipsometer systems prior to or after a sample system. The purpose is, for instance, to eliminate a radially outer annulus of a generally arbitrary Profile beam that presents with low intensity level irregular content, so that electromagnetic beam intensity is caused to quickly decay to zero as a function of radius.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: September 24, 2002
    Assignee: J.A. Woollam Co., Inc.
    Inventors: Martin M. Liphardt, Blaine D. Johs, Craig M. Herzinger, Ping He
  • Patent number: 6455853
    Abstract: Disclosed is spectroscopic ellipsometer system mediated methodology for quantifying thickness and impurity profile defining parameters in mathematical models of impurity profile containing thin membranes having two substantially parallel surfaces which are separated by a thickness, wherein the spectroscopic ellipsometer system operates in near-IR and IR wavelength ranges.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: September 24, 2002
    Assignee: J.A. Woollam Co., Inc.
    Inventors: Craig M. Herzinger, Thomas E. Tiwald
  • Patent number: 6442190
    Abstract: Disclosed is a method of “self-encoding” data symbols for transmission over spread-spectrum, (eg. (CDMA), (FDMA)), communication systems which utilizes encountered data symbols, in a sequence of data symbols, to develop data symbol energy spreading codes which are applied to encode subsequently encountered data symbols. The method includes decoding each encoded data symbol after it is transmitted to a receiver in the spread-spectrum communication system.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: August 27, 2002
    Assignee: The Board of Regents of the University of Nebraska
    Inventor: Lim Nguyen
  • Patent number: 6441902
    Abstract: Disclosed is a method of evaluating sample system anisotropic refractive indices, and orientations thereof with respect to an alignment surface, in multiple dimensions. The preferred method involves a sequence of steps which allows overcoming mathematical model parameter correlation during mathematical regression parameter evaluation, even though individually, steps of the present invention method wherein anisotropic refractive indices, or differences therebetween, are evaluated, require that only a relatively simple one dimensional data set be acquired.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: August 27, 2002
    Assignee: J. A. Woollam Co. Inc.
    Inventors: James N. Hilfiker, Corey L. Bungay, Craig M. Herzinger
  • Patent number: 6391598
    Abstract: A method for producing at least one metal salt of a fatty acid is disclosed. The process first obtains from animal rumen, ruminal fluid containing at least one fatty acid. Next, at least one metal oxide is added to the ruminal fluid. One metal salt of a fatty acid is formed from the addition of these two components. Lastly, the process involves recovering at least some of the at least one metal salt of a fatty acid. The ruminal fluid also contains enzymes which are isolated in the process.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: May 21, 2002
    Assignee: Board of Regents of the University of Nebraska
    Inventors: L. Davis Clements, Ajoy Y. K. Koppolu
  • Patent number: 6381008
    Abstract: Disclosed is a spectrometer system with unique wavelength resolution improving relative positioning of diffraction grating and detector. Also disclosed is a modified evolving windowed factor analysis based method of detecting semiconductor etch end points which is particularly well suited for use in real time monitoring and process control. Use of wavelength group selecting mask filters is also disclosed.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: April 30, 2002
    Assignee: SD Acquisition Inc.
    Inventors: Wayne A. Branagh, Robert C. Fry, Juan C. Ivaldi, Jason A. Rivers, Michael R. Dyas, Robert M. Brown, Jr.
  • Patent number: 6372306
    Abstract: Disclosed are ferroelectric materials with a chemical formula: A(1−x)BxC(1−y)DyF3; such as NaCaF3, or Na1−xKxCaF3, which are fabricated by deposition of source materials onto a (111) orientation substrate having a cubic lattice constant of between about 3.8 to 4.3 Angstroms, or onto a (001) orientation substrate having a hexagonal a-axis parameter of between about 5.4 to 6.2. A preferred deposition technique is pulsed laser deposition.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: April 16, 2002
    Assignee: Board of Regents of the University of Nebraska
    Inventors: Robert W. Smith, James S. Horwitz
  • Patent number: 6358141
    Abstract: A combine system which includes at least two on-board bins in combination with associated equipment for harvesting ears of corn, separating corn kernels from cobs, and directing the corn kernels and whole cobs to separate bins for accumulation therein.
    Type: Grant
    Filed: May 22, 2000
    Date of Patent: March 19, 2002
    Inventors: Ty E. Stukenholtz, Jay E. Stukenholtz
  • Patent number: 6353477
    Abstract: A Spectroscopic Rotating Compensator Material System Investigation System including a Dual Waveplate Pseudo-Achromatic Compensator System, and a Photo-Array for simultaneously detecting a Multiplicity of Wavelengths, is disclosed. The Spectroscopic Rotating Compensator Material System Investigation System is calibrated by a Mathematical Regression based technique involving, where desirable, Parameterization of Calibration Parameters. Calibration is possible utilizing various dimensional Data Set(s) obtained with the Spectroscopic Rotating Compensator Material System Investigation System in a “Material System present” or in a Straight-through” configuration, said data sets being variously normalized to D.C., A.C. or combination D.C. and A.C. components thereof.
    Type: Grant
    Filed: February 1, 2000
    Date of Patent: March 5, 2002
    Assignee: J. A. Woollam Co. Inc.
    Inventors: Blaine D. Johs, Craig M. Herzinger
  • Patent number: 6337665
    Abstract: Disclosed is a gimbaled antenna system mounting system for maintaining an electromagnetic signal reception means, of an antenna system present in a remote unit in a global positioning system (GPS) based system for continuous electronic monitoring and tracking of monitored individual(s) from a central control station (CCS), in an essentially constant desired orientation with respect to an earth orbiting satellite source of electromagnetic signals, when, in use, change occurs in the orientation of a structural frame element of the remote unit to which the antenna system is, via the gimbaled antenna system mounting system, mounted.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: January 8, 2002
    Assignee: Advanced Business Sciences, Inc.
    Inventor: John J. Gaukel
  • Patent number: 6332037
    Abstract: Disclosed is a method for enabling easy characterization, storage and retrieval of multi-dimensional data structures involving use of a translation, rotation and scaling invariant index which results from concatenating a series of Eigenvalue calculation mediated index elements determined at a plurality of hierarchical data depth levels.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: December 18, 2001
    Assignee: Board of Regents of the University of Nebraska
    Inventor: Qiuming Zhu
  • Patent number: 6327487
    Abstract: Disclosed is a bioelectric interface containing at least two electrodes and which is characterized as a support sheet with such attributes as an undulated outer edge, and/or with holes therethrough which allow access to a subject's ski in use, and/or with perforations therein which allow easy detaching and deployment of electrodes therefrom is disclosed. The preferred version has all electrodes necessary to perform twelve lead ECG monitoring. The bioelectric interface includes an adhesive sheet in functional combination with the support sheet, which adhesive sheet simultaneously presents with, preferably, scrim and/or slit effected essentially anisotropic specific impedance properties in combination with essentially isotropic mechanical pliability and adhesion properties. The electrodes are affixed to the support sheet in a manner such that their relative positions with respect to one another are essentially fixed. The present invention also provides for spring-loaded electrode contact improving access.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: December 4, 2001
    Inventor: Robert A. Stratbucker
  • Patent number: 6268636
    Abstract: Disclosed are semiconductor devices including at least one junction which is rectifying whether the semiconductor is caused to be N or P-type, by the presence of field induced carriers. In particular, inverting and non-inverting gate voltage channel induced semiconductor single devices with operating characteristics similar to conventional multiple device CMOS systems, which can be operated as modulators, are disclosed as are a non-latching SCR and an approach to blocking parasitic currents. Operation of the gate voltage channel induced semiconductor single devices with operating characteristics similar to multiple device CMOS systems under typical bias schemes is described, and simple demonstrative five mask fabrication procedures for the inverting and non-inverting gate voltage channel induced semiconductor single devices with operating characteristics similar to multiple device CMOS systems are also presented.
    Type: Grant
    Filed: February 8, 1999
    Date of Patent: July 31, 2001
    Inventor: James D. Welch
  • Patent number: 6268917
    Abstract: Disclosed is a source of polychromatic electromagnetic radiation which, utilizing a beam combiner system, combines beams of polychromatic electromagnetic radiation from a plurality of sources to provide a relatively broad and flattened intensity characteristic vs. wavelength output spectrum, and its application in material system investigation systems, such as ellipsometers, spectrophotometers and polarimeters which comprise a polychromatic source of electromagnetic radiation.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: July 31, 2001
    Assignee: J.A. Woollam Co. Inc.
    Inventor: Blaine D. Johs
  • Patent number: 6254478
    Abstract: Disclosed is a method of conducting a competition utilizing a slotless-micro-race-track system and remote control motorized racing vehicle(s), optionally including the providing of benefits to sponsors in the form of televised presentation of identifying marks during the competition.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: July 3, 2001
    Inventors: Keith E. Namanny, Kerry T. Namanny, Kenny D. Namanny
  • Patent number: 6223073
    Abstract: A method of analyzing experimentally derived electrocardiograph (ECG) data, and system for practicing said method, which allow tracking of subject cardiac status change and which allow accurate catagorization of subjects into various abnormal and normal classifications is disclosed. The presently preferred embodiment applies an algorithm which compares representative parameter, (eg. root-mean-square (RMS) mean), values derived from analysis of a selected portion of a single cycle of an ECG PQRST waveform obtained from investigation of a subject, to similarly derived representative parameter, (eg. RMS mean and RMS standard deviation), values for a composite ECG waveform present in a compiled data bank derived from (ECG) investigation of numerous subjects who were documented as normals, typically in each of a plurality of frequency range bands.
    Type: Grant
    Filed: September 20, 1999
    Date of Patent: April 24, 2001
    Inventor: Ronald D. Seegobin
  • Patent number: 6184523
    Abstract: Disclosed is a compact, small diameter, high resolution charged particle-energy detecting, retractable cylindrical mirror analyzer system. Multiple sequential stages enable charged particle-energy detection with an improved resolution as compared to that possible where only a single stage is utilized. The relatively small size allows for positioning, via a manipulator of the cylindrical mirror analyzer system, which is attached to a linear motion feedthrough mounted on a conflat flange of a vacuum system.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: February 6, 2001
    Assignee: Board of Regents of the University of Nebraska
    Inventors: Peter A. Dowben, Carlo Waldfried, Tara J. McAvoy, David N. McIlroy
  • Patent number: 6174501
    Abstract: Triglycerides are reacted in a liquid phase reaction with a homogeneous basic catalyst and alcohol, such as ethanol or methanol. The reaction yields a spatially separated two phase result with an upper located non-polar phase consisting principally of transesterified triglycerides and a lower located phase consisting principally of crude glycerol and residual transesterified triglycerides. The transesterified triglycerides and/or glycerol phase is/are optionally, each separately passed through strong cationic ion exchanger(s) to remove anions, resulting in neutral product(s). The crude glycerol is then flashed to remove alcohol and is reacted with an etherifying agent, such as isobutylene or isoamylene, in the presence of a strong acid catalyst to produce glycerol ethers. The glycerol ethers are then added back to the transesterified triglycerides to provide an improved biodiesel fuel.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: January 16, 2001
    Assignee: The Board of Regents of the University of Nebraska
    Inventor: Hossein Noureddini