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| Number | Title | Issue Date |
| 6931045 | Distributed Bragg reflectors with reduced optical absorption A new class of distributed Bragg reflectors has been developed. These distributed Bragg reflectors comprise interlayers positioned between sets of high-index and low-index quarter-wave plates. The presence of these interlayers is to reduce photon absorption resultin... | 08/16/2005 |
| 6771083 | Poole-frenkel piezoconductive element and sensor A new class of highly sensitive piezoconductive strain sensor elements and sensors has been invented. The new elements function under conditions such that electrical conductivity is dominated by Poole-Frenkel transport. A substantial piezoconductive effect appears i... | 08/03/2004 |
| 6739201 | Micromechanical apparatus for measurement of forces A new class of micromechanical dynamometers has been disclosed which are particularly suited to fabrication in parallel with other microelectromechanical apparatus. Forces in the microNewton regime and below can be measured with such dynamometers which are based on ... | 05/25/2004 |
| 6699392 | Method to fabricate silicon chromatographic column comprising fluid ports A new method for fabricating a silicon chromatographic column comprising through-substrate fluid ports has been developed. This new method enables the fabrication of multi-layer interconnected stacks of silicon chromatographic columns.... | 03/02/2004 |
| 6693285 | Fluorescent fluid interface position sensor A new fluid interface position sensor has been developed, which is capable of optically determining the location of an interface between an upper fluid and a lower fluid, the upper fluid having a larger refractive index than a lower fluid. The sensor func... | 02/17/2004 |
| 6663697 | Microfabricated packed gas chromatographic column A new class of miniaturized gas chromatographic columns has been invented. These chromatographic columns are formed using conventional micromachining techniques, and allow packed columns having lengths on the order of a meter to be fabricated with a footp... | 12/16/2003 |
| 6632542 | Solar selective absorption coatings A new class of solar selective absorption coatings are disclosed. These coatings comprise a structured metallic overlayer such that the overlayer has a sub-micron structure designed to efficiently absorb solar radiation, while retaining low thermal emissi... | 10/14/2003 |
| 6600761 | Semiconductor laser with multiple lasing wavelengths A new class of multi-terminal vertical-cavity semiconductor laser components has been developed. These multi-terminal laser components can be switched, either electrically or optically, between distinct lasing wavelengths, or can be made to lase simultane... | 07/29/2003 |
| 6567454 | Coupled-resonator vertical-cavity lasers with two active gain regions A new class of coupled-resonator vertical-cavity semiconductor lasers has been developed. These lasers have multiple resonant cavities containing regions of active laser media, resulting in a multi-terminal laser component with a wide range of novel prope... | 05/20/2003 |
| 6567715 | Method and system for automated on-chip material and structural certification of MEMS devices A new approach toward MEMS quality control and materials characterization is provided by a combined test structure measurement and mechanical response modeling approach. Simple test structures are cofabricated with the MEMS devices being produced. These t... | 05/20/2003 |
| 6503409 | Lithographic fabrication of nanoapertures A new class of silicon-based lithographically defined nanoapertures and processes for their fabrication using conventional silicon microprocessing technology have been invented. The new ability to create and control such structures should significantly ex... | 01/07/2003 |
| 6494326 | Composite zeolite membranes A new class of composite zeolite membranes and synthesis techniques therefor has been invented. These membranes are essentially defect-free, and exhibit large levels of transmembrane flux and of chemical and isotopic selectivity.... | 12/17/2002 |
| 6476343 | Energy-beam-driven rapid fabrication system An energy beam driven rapid fabrication system, in which an energy beam strikes a growth surface to form a molten puddle thereon. Feed powder is then injected into the molten puddle from a converging flow of feed powder. A portion of the feed powder becom... | 11/05/2002 |
| 6459951 | Direct laser additive fabrication system with image feedback control A closed-loop, feedback-controlled direct laser fabrication system is disclosed. The feedback refers to the actual growth conditions obtained by real-time analysis of thermal radiation images. The resulting system can fabricate components with severalfold... | 10/01/2002 |
| 6453746 | Microscale acceleration history discriminators A new class of micromechanical acceleration history discriminators is claimed. These discriminators allow the precise differentiation of a wide range of acceleration-time histories, thereby allowing adaptive events to be triggered in response to the sever... | 09/24/2002 |
| 6438191 | Explosive scabbling of structural materials A new approach to scabbling of surfaces of structural materials is disclosed. A layer of mildly energetic explosive composition is applied to the surface to be scabbled. The explosive composition is then detonated, rubbleizing the surface. Explosive compo... | 08/20/2002 |
| 6424165 | Electrostatic apparatus for measurement of microfracture strength A new class of materials testing apparatus has been invented. Particularly suited to the measurement of fracture and fatigue properties in the extremely strong materials encountered in microelectromechanical systems, material strains well in excess of 1% ... | 07/23/2002 |
| 6414332 | Media for control of thermal emission and methods of applications thereof A new class of media for control of emission of thermal radiation from an object or part thereof is disclosed. These materials can be used for a wide variety of thermal control applications.... | 07/02/2002 |
| 6409413 | Large displacement spherical joint A new class of spherical joints has a very large accessible full cone angle, a property which is beneficial for a wide range of applications. Despite the large cone angles, these joints move freely without singularities.... | 06/25/2002 |
| 6388795 | Photonic layered media A new class of structured dielectric media which exhibit significant photonic bandstructure has been invented. The new structures, called photonic layered media, are easy to fabricate using existing layer-by-layer growth techniques, and offer the ability ... | 05/14/2002 |
| 6381488 | Method and apparatus to measure the depth of skin burns A new device for measuring the depth of surface tissue burns based on the rate at which the skin temperature responds to a sudden differential temperature stimulus. This technique can be performed without physical contact with the burned tissue. In one im... | 04/30/2002 |
| 6375759 | Batch fabrication of precision miniature permanent magnets A new class of processes for fabrication of precision miniature rare earth permanent magnets is disclosed. Such magnets typically have sizes in the range 0.1 to 10 millimeters, and dimensional tolerances as small as one micron. Very large magnetic fields ... | 04/23/2002 |
| 6365428 | Embedded high-contrast distributed grating structures A new class of fabrication methods for embedded distributed grating structures is claimed, together with optical devices which include such structures. These new methods are the only known approach to making defect-free high-dielectric contrast grating st... | 04/02/2002 |
| 6358854 | Method to fabricate layered material compositions A new class of processes suited to the fabrication of layered material compositions is disclosed. Layered material compositions are typically three-dimensional structures which can be decomposed into a stack of structured layers. The best known examples a... | 03/19/2002 |
| 6348687 | Aerodynamic beam generator for large particles A new type of aerodynamic particle beam generator is disclosed. This generator produces a tightly focused beam of large material particles at velocities ranging from a few feet per second to supersonic speeds, depending on the exact configuration and oper... | 02/19/2002 |
| 6332568 | Wafer scale micromachine assembly method A method for fusing together, using diffusion bonding, micromachine subassemblies which are separately fabricated is described. A first and second micromachine subassembly are fabricated on a first and second substrate, respectively. The substrates are po... | 12/25/2001 |
| 6297496 | Photodetectors with passive thermal radiation control A new class of photodetectors which include means for passive shielding against undesired thermal radiation is disclosed. Such devices can substitute in applications currently requiring cooled optical sensors, such as IR detection and imaging. This descri... | 10/02/2001 |
| 6290868 | Field-structured material media and methods for synthesis thereof The present application is directed to a new class of composite materials, called field-structured composite (FSC) materials, which comprise a oriented aggregate structure made of magnetic particles suspended in a nonmagnetic medium, and to a new class of... | 09/18/2001 |
| 6257447 | Precision powder feeder A new class of precision powder feeders is disclosed. These feeders provide a precision flow of a wide range of powdered materials, while remaining robust against jamming or damage. These feeders can be precisely controlled by feedback mechanisms.... | 07/10/2001 |
| 6255659 | Method and apparatus for passive optical dosimeter comprising caged dye molecules A new class of ultraviolet dosimeters is made possible by exposing caged dye molecules, which generate a dye molecule on exposure to ultraviolet radiation, to an exterior environment. Applications include sunburn monitors, characterizing the UV exposure h... | 07/03/2001 |
| 6243663 | Method for simulating discontinuous physical systems The mathematical foundations of conventional numerical simulation of physical systems provide no consistent description of the behavior of such systems when subjected to discontinuous physical influences. As a result, the numerical simulation of such prob... | 06/05/2001 |
| 6234703 | Double slotted socket spherical joint A new class of spherical joints is disclosed. These spherical joints are capable of extremely large angular displacements (full cone angles in excess of 270°), while exhibiting no singularities or dead spots in their range of motion. These joints can imp... | 05/22/2001 |
| 6220561 | Compound floating pivot micromechanisms A new class of tilting micromechanical mechanisms have been developed. These new mechanisms use compound floating pivot structures to attain far greater tilt angles than are practical using other micromechanical techniques. The new mechanisms are also cap... | 04/24/2001 |
| 6202734 | Apparatus for jet application of molten metal droplets for manufacture of metal parts The apparatus comprises a device for supplying molten metal, a device for heating molten metal such that it remains fluid while within the apparatus, a device for applying a magnetic field in a direction perpendicular to the device for supplying molten me... | 03/20/2001 |
| 6198180 | Micromechanisms with floating pivot A new class of tilting micromechanical mechanisms have been developed. These new mechanisms use floating pivot structures to relieve some of the problems encountered in the use of solid flexible pivots.... | 03/06/2001 |
| 6147793 | Backconversion-limited optical parametric oscillators A more efficient class of optical parametric oscillators is made possible by introducing means for reducing signal losses due to backconversion of signal photons in the nonlinear optical medium.... | 11/14/2000 |
| 6143378 | Energetic additive manufacturing process with feed wire A process for additive manufacture by energetic wire deposition is described. A source wire is fed into a energy beam generated melt-pool on a growth surface as the melt-pool moves over the growth surface. This process enables the rapid prototyping and ma... | 11/07/2000 |
| 6140904 | Thermal disconnect for high-temperature batteries A new type of high temperature thermal disconnect has been developed to protect electrical and mechanical equipment from damage caused by operation at extreme temperatures. These thermal disconnects allow continuous operation at temperatures ranging from ... | 10/31/2000 |
| 6110393 | Epoxy bond and stop etch fabrication method A class of epoxy bond and stop etch (EBASE) microelectronic fabrication techniques is disclosed. The essence of such techniques is to grow circuit components on top of a stop etch layer grown on a first substrate. The first substrate and a host substrate ... | 08/29/2000 |
| 6110844 | Reduction of particle deposition on substrates using temperature gradient control A method of reducing particle deposition during the fabrication of microelectronic circuitry is presented. Reduction of particle deposition is accomplished by controlling the relative temperatures of various parts of the deposition system so that a large ... | 08/29/2000 |
