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| Number | Title | Issue Date |
| 6957573 | Vadose zone water fluxmeter A Vadose Zone Water Fluxmeter (WFM) or Direct Measurement WFM provides direct measurement of unsaturated water flow in the vadose zone. The fluxmeter is a cylindrical device that fits in a borehole or can be installed near the surface, or in pits, or in pile structu... | 10/25/2005 |
| 6923505 | Ergonomically neutral arm support system An ergonomic arm support system maintains a neutral position for the forearm. A mechanical support structure attached to a chair or other mounting structure supports the arms of a sitting or standing person. The system includes moving elements and tensioning element... | 08/02/2005 |
| 6924493 | Ion beam lithography system A maskless plasma-formed ion beam lithography tool provides for patterning of sub-50 nm features on large area flat or curved substrate surfaces. The system is very compact and does not require an accelerator column and electrostatic beam scanning components. The pa... | 08/02/2005 |
| 6922019 | Microwave ion source A compact microwave ion source has a permanent magnet dipole field, a microwave launcher, and an extractor parallel to the source axis. The dipole field is in the form of a ring. The microwaves are launched from the middle of the dipole ring using a coaxial waveguid... | 07/26/2005 |
| 6907097 | Cylindrical neutron generator A cylindrical neutron generator is formed with a coaxial RF-driven plasma ion source and target. A deuterium (or deuterium and tritium) plasma is produced by RF excitation in a cylindrical plasma ion generator using an RF antenna. A cylindrical neutron generating ta... | 06/14/2005 |
| 6904366 | Waterflood control system for maximizing total oil recovery A control system and method for determining optimal fluid injection pressure is based upon a model of a growing hydrofracture due to waterflood injection pressure. This model is used to develop a control system optimizing the injection pressure by using a prescribed... | 06/07/2005 |
| 6888146 | Maskless micro-ion-beam reduction lithography system A maskless micro-ion-beam reduction lithography system is a system for projecting patterns onto a resist layer on a wafer with feature size down to below 100 nm. The MMRL system operates without a stencil mask. The patterns are generated by switching beamlets on and... | 05/03/2005 |
| 6885192 | SQUID detected NMR and MRI at ultralow fields Nuclear magnetic resonance (NMR) signals are detected in microtesla fields. Prepolarization in millitesla fields is followed by detection with an untuned de superconducting quantum interference device (SQUID) magnetometer. Because the sensitivity of the SQUID is fre... | 04/26/2005 |
| 6781426 | Nanosecond monolithic CMOS readout cell A pulse shaper is implemented in monolithic CMOS with a delay unit formed of a unity gain buffer. The shaper is formed of a difference amplifier having one input connected directly to an input signal and a second input connected to a delayed input signal through the... | 08/24/2004 |
| 6768120 | Focused electron and ion beam systems An electron beam system is based on a plasma generator in a plasma ion source with an accelerator column. The electrons are extracted from a plasma cathode in a plasma ion source, e.g. a multicusp plasma ion source. The beam can be scanned in both the x and y direct... | 07/27/2004 |
| 6636046 | Electrical resistivity probes A miniaturized electrical resistivity (ER) probe based on a known current-voltage (I-V) electrode structure, the Wenner array, is designed for local (point) measurement. A pair of voltage measuring electrodes are positioned between a pair of current carry... | 10/21/2003 |
| 6604941 | Refractory crucibles and molds for containing reactive molten metals and salts Refractory ceramics and composite materials consisting of nitrides, mixed nitrides and oxides, and oxynitrides of Group IV metals Hf, Zr, Ti, and Group III metals Sc, Y, and lanthanides La through Lu, are used to form refractory articles, or as coatings f... | 08/12/2003 |
| 6583522 | Switchable multiple source power supply In a readily switchable multiple solar panel system, the individual solar panels are interconnected with a control or switching apparatus which allows the solar panels to be readily switched into various series, parallel, or series-parallel configurations... | 06/24/2003 |
| 6573510 | Charge exchange molecular ion source Ions, particularly molecular ions with multiple dopant nucleons per ion, are produced by charge exchange. An ion source contains a minimum of two regions separated by a physical barrier and utilizes charge exchange to enhance production of a desired ion s... | 06/03/2003 |
| 6548817 | Miniaturized cathodic arc plasma source A cathodic arc plasma source has an anode formed of a plurality of spaced baffles which extend beyond the active cathode surface of the cathode. With the open baffle structure of the anode, most macroparticles pass through the gaps between the baffles and... | 04/15/2003 |
| 6538262 | Nanotube junctions The present invention comprises a new nanoscale metal-semiconductor, semiconductor-semiconductor, or metal-metal junction, designed by introducing topological or chemical defects in the atomic structure of the nanotube. Nanotubes comprising adjacent secti... | 03/25/2003 |
| 6486480 | Plasma formed ion beam projection lithography system A plasma-formed ion-beam projection lithography (IPL) system eliminates the acceleration stage between the ion source and stencil mask of a conventional IPL system. Instead a much thicker mask is used as a beam forming or extraction electrode, positioned ... | 11/26/2002 |
| 6465780 | Filters for cathodic arc plasmas Cathodic arc plasmas are contaminated with macroparticles. A variety of magnetic plasma filters has been used with various success in removing the macroparticles from the plasma. An open-architecture, bent solenoid filter, with additional field coils at t... | 10/15/2002 |
| 6465793 | Arc initiation in cathodic arc plasma sources A "triggerless" arc initiation method and apparatus is based on simply switching the arc supply voltage to the electrodes (anode and cathode). Neither a mechanical trigger electrode nor a high voltage flashover from a trigger electrode is required. A cond... | 10/15/2002 |
| 6398384 | Table lamp with dynamically controlled lighting distribution and uniformly illuminated luminous shade A double lamp table or floor lamp lighting system has a pair of compact fluorescent lamps (CFLs) or other lamps arranged vertically, i.e. one lamp above the other, with a reflective septum in between. By selectively turning on one or both of the CFLs, dow... | 06/04/2002 |
| 6376978 | Quartz antenna with hollow conductor A radio frequency (RF) antenna for plasma ion sources is formed of a hollow metal conductor tube disposed within a glass tube. The hollow metal tubular conductor has an internal flow channel so that there will be no coolant leakage if the outer glass tube... | 04/23/2002 |
| 6357132 | Boom position detection system A detection apparatus and method reliably determine the position of a hydraulically actuated telescoping boom. The detection system is built right into the hydraulic piston apparatus which is used to extend and retract the telescoping boom. A pair of flow... | 03/19/2002 |
| 6318880 | Portable lamp with dynamically controlled lighting distribution A double lamp table or floor lamp lighting system has a pair of compact fluorescent lamps (CFLs) arranged vertically with a reflective septum in between. By selectively turning on one or both of the CFLs, down lighting, up lighting, or both up and down li... | 11/20/2001 |
| 6297189 | Sulfide catalysts for reducing SO2 to elemental sulfur A highly efficient sulfide catalyst for reducing sulfur dioxide to elemental sulfur, which maximizes the selectivity of elemental sulfur over byproducts and has a high conversion efficiency. Various feed stream contaminants, such as water vapor are well t... | 10/02/2001 |
| 6275403 | Bias controlled DC to AC converter and systems It is difficult to control a variable speed converter or inverter so that an AC motor or other load may be operated from a DC source under varying source and/or load conditions. A DC bias voltage control related to AC frequency by a predetermined relation... | 08/14/2001 |
| 6259085 | Fully depleted back illuminated CCD A backside illuminated charge coupled device (CCD) is formed of a relatively thick high resistivity photon sensitive silicon substrate, with frontside electronic circuitry, and an optically transparent backside ohmic contact for applying a backside voltag... | 07/10/2001 |
| 6218668 | Coplanar interdigitated grid detector with single electrode readout The coplanar interdigitated grid technique with single electrode readout provides substantial spectral performance improvement over that of conventional full-area planar electrode detectors and over coplanar interdigitated grid detectors which measure the... | 04/17/2001 |
| 6190579 | Electron emission materials and components Electron emission materials consisting of carbides, borides, and oxides, and related mixtures and compounds, of Group IVB metals Hf, Zr, and Ti, Group IIA metals Be, Mg, Ca, Sr, and Ba, and Group IIIB metals Sc, Y, and lanthanides La through Lu are used i... | 02/20/2001 |
| 6159444 | NMR/MRI with hyperpolarized gas and high Tc SQUID A method and apparatus for the detection of nuclear magnetic resonance (NMR) signals and production of magnetic resonance imaging (MRI) from samples combines the use of hyperpolarized inert gases to enhance the NMR signals from target nuclei in a sample a... | 12/12/2000 |
| 6128431 | High efficiency source coupler for optical waveguide illumination system A fiber optic or optical waveguide illumination system includes a source coupling system. The source coupling system includes an optical channel with an internal cavity. A light source is disposed inside the driving circuit. Coupling losses are minimized ... | 10/03/2000 |
| 6118572 | Photochromic, electrochromic, photoelectrochromic and photovoltaic devices A light activated photoelectrochromic device is formed of a two-component system formed of a photoactive charge carrier generating material and electrochromic material (plus an elecrolyte). Light interacts with a semiconductive material to generate hole-e... | 09/12/2000 |
| 6094012 | Low energy spread ion source with a coaxial magnetic filter Multicusp ion sources are capable of producing ions with low axial energy spread which are necessary in applications such as ion projection lithography (IPL) and radioactive ion beam production. The addition of a radially extending magnetic filter consist... | 07/25/2000 |
| 6071231 | Device and method for artificial insemination of bovines and other animals An artificial insemination device is formed by attaching a semen filled straw or tube to one end of a pipette to which a syringe is attached at the other end. An anchorable tip is attached to the other end of the semen filled tube. The semen filled tube i... | 06/06/2000 |
| 6051165 | Electron emission materials and components Electron emission materials consisting of carbides, borides, and oxides, and related mixtures and compounds, of Group IVB metals Hf, Zr, and Ti, Group IIA metals Be, Mg, Ca, Sr, and Ba, and Group IIIB metals Sc, Y, and lanthanides La through Lu are used i... | 04/18/2000 |
| 5998790 | Transmission electron microscope CCD camera In order to improve the performance of a CCD camera on a high voltage electron microscope, an electron decelerator is inserted between the microscope column and the CCD. This arrangement optimizes the interaction of the electron beam with the scintillator... | 12/07/1999 |
| 5945677 | Focused ion beam system A focused ion beam (FIB) system produces a final beam spot size down to 0.1 μm or less and an ion beam output current on the order of microamps. The FIB system increases ion source brightness by properly configuring the first (plasma) and second (extract... | 08/31/1999 |
| 5934900 | Refractory nitride, carbide, ternary oxide, nitride/oxide, oxide/carbide, oxycarbide, and oxynitride materials and articles Refractory ceramics and composite materials consisting of nitrides, carbides, mixed carbides and oxides, oxycarbides, mixed nitrides and oxides, and oxynitrides of Group IVB metals Hf, Zr, and Ti, Group IIA metals Be, Mg, Ca, Sr, and Ba, and Group IIIB me... | 08/10/1999 |
| 5911919 | Electron emission materials and components Electron emission materials consisting of carbides, borides, and oxides, and related mixtures and compounds, of Group IVB metals Hf, Zr, and Ti, Group IIA metals Be, Mg, Ca, Sr, and Ba, and Group IIIB metals Sc, Y and lanthanides La through Lu are used in... | 06/15/1999 |
| 5891658 | Single-step, solid-state competitive immunoassay Simplicity, sensitivity and versatility of optical sensors based on competitive immunoassays using antibody-antigen reactions are achieved by solid-state, single-step reactions which permit accurate sensitive qualitative and quantitative information to be... | 04/06/1999 |
| 5883591 | Ultra-wideband impedance sensor The ultra-wideband impedance sensor (UWBZ sensor, or Z-sensor) is implemented in differential and single-ended configurations. The differential UWBZ sensor employs a sub-nanosecond impulse to determine the balance of an impedance bridge. The bridge is con... | 03/16/1999 |
