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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8163154 | Method for voltage-gated protein fractionation We report unique findings on the voltage dependence of protein exclusion from the pores of nanoporous polymer exclusion membranes. The pores are small enough that proteins are excluded from passage with low applied electric fields, but increasing the field enables p... | 04/24/2012 |
| 8157886 | Bulk synthesis of nanoporous palladium and platinum powders Disclosed is a method for providing nanoporous palladium and platinum powders. These materials were synthesized on milligram to gram scales by chemical reduction of tetrahalo-complexes with ascorbate in a concentrated aqueous surfactant at temperatures between −20... | 04/17/2012 |
| 7931792 | System for concentrating and analyzing particles suspended in a fluid Disclosed is a device for separating and concentrating particles suspended in a fluid stream by using dielectrophoresis (DEP) to trap and/or deflect those particles as they migrate through a fluid channel. The method uses fluid channels designed to constrain a liqui... | 04/26/2011 |
| 7922931 | Low-melting point heat transfer fluid A low-melting point, heat transfer fluid comprising a mixture of LiNO3, NaNO3, KNO3, NaNO2 and KNO2 salts where the Li, Na and K cations are present in amounts of about 20-33.5 mol % Li, about 18.6-40 mol % Na, ... | 04/12/2011 |
| 7886434 | Method for making a micromachined microwave signal control device A method for fabricating a signal controller, e.g., a filter or a switch, for a coplanar waveguide during the LIGA fabrication process of the waveguide. Both patterns for the waveguide and patterns for the signal controllers are created on a mask. Radiation travels ... | 02/15/2011 |
| 7877234 | System and method for statistically monitoring and analyzing sensed conditions A system and method of monitoring and analyzing a plurality of attributes for an alarm condition is disclosed. The attributes are processed and/or unprocessed values of sensed conditions of a collection of a statistically significant number of statistically similar ... | 01/25/2011 |
| 7865336 | System and method for statistically monitoring and analyzing sensed conditions A system and method of monitoring and analyzing a plurality of attributes for an alarm condition is disclosed. The attributes are processed and/or unprocessed values of sensed conditions of a collection of a statistically significant number of statistically similar ... | 01/04/2011 |
| 7863572 | Fracture-resistant lanthanide scintillators Lanthanide halide alloys have recently enabled scintillating gamma ray spectrometers comparable to room temperature semiconductors ( | 01/04/2011 |
| 7828990 | Low-melting point heat transfer fluid A low-melting point, heat transfer fluid made of a mixture of five inorganic salts including about 29.1-33.5 mol % LiNO3, 0-3.9 mol % NaNO3, 2.4-8.2 mol % KNO3, 18.6-19.9 mol % NaNO2, and 40-45.6 mol % KNO2. The... | 11/09/2010 |
| 7816044 | Fuel cell using a hydrogen generation system A system is described for storing and generating hydrogen and, in particular, a system for storing and generating hydrogen for use in an H2/O2 fuel cell. The hydrogen storage system uses beta particles from a beta particle emitting material to ... | 10/19/2010 |
| 7811439 | Concentration and separation of biological organisms by ultrafiltration and dielectrophoresis Disclosed is a method for monitoring sources of public water supply for a variety of pathogens by using a combination of ultrafiltration techniques together dielectrophoretic separation techniques. Because water-borne pathogens, whether present due to “natural” ... | 10/12/2010 |
| 7781111 | Hydrogen storage and generation system A system for storing and generating hydrogen generally and, in particular, a system for storing and generating hydrogen for use in an H2/O2 fuel cell. The hydrogen storage system uses the beta particles from a beta particle emitting material to... | 08/24/2010 |
| 7776357 | Vesicle-based method for collecting, manipulating, and chemically processing trace macromolecular species Disclosed is an apparatus and method for inserting one or several chemical or biological species into phospholipid containers that are controlled within a microfluidic network, wherein individual containers are tracked and manipulated by electric fields and wherein ... | 08/17/2010 |
| 7756682 | System and method for statistically monitoring and analyzing sensed conditions A system and method of monitoring and analyzing a plurality of attributes for an alarm condition is disclosed. The attributes are processed and/or unprocessed values of sensed conditions of a collection of a statistically significant number of statistically similar ... | 07/13/2010 |
| 7754077 | Dialysis membrane for separation on microchips Laser-induced phase-separation polymerization of a porous acrylate polymer is used for in-situ fabrication of dialysis membranes inside glass microchannels. A shaped 355 nm laser beam is used to produce a porous polymer membrane with a thickness of about 15 μm, whi... | 07/13/2010 |
| 7741613 | Neutron scatter camera An instrument that will directly image the fast fission neutrons from a special nuclear material source has been described. This instrument can improve the signal to background compared to non imaging neutron detection techniques by a factor given by ratio of the an... | 06/22/2010 |
| 7710086 | Modular high voltage power supply for chemical analysis A high voltage power supply for use in a system such as a microfluidics system, uses a DC-DC converter in parallel with a voltage-controlled resistor. A feedback circuit provides a control signal for the DC-DC converter and voltage-controlled resistor so as to regul... | 05/04/2010 |
| 7666289 | Methods and devices for high-throughput dielectrophoretic concentration Disclosed herein are methods and devices for assaying and concentrating analytes in a fluid sample using dielectrophoresis. As disclosed, the methods and devices utilize substrates having a plurality of pores through which analytes can be selectively prevented from ... | 02/23/2010 |
| 7625474 | Method for a microfluidic weaklink device The present invention relates to an electrokinetic (EK) pump capable of creating high pressures electroosmotically, and capable of retaining high pressures. Both pressure creation and retention are accomplished without the need for moving parts. The EK pump uses a p... | 12/01/2009 |
| 7622596 | Thermally cleavable surfactants Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. T... | 11/24/2009 |
| 7618600 | Reactor for removing ammonia Disclosed is a device for removing trace amounts of ammonia from a stream of gas, particularly hydrogen gas, prepared by a reformation apparatus. The apparatus is used to prevent PEM “poisoning” in a fuel cell receiving the incoming hydrogen stream. ... | 11/17/2009 |
| 7608461 | Surface engineered nanoparticles for improved surface enhanced Raman scattering applications and method for preparing same A method for producing metal nanoparticles that when associated with an analyte material will generate an amplified SERS spectrum when the analyte material is illuminated by a light source and a spectrum is recorded. The method for preparing the metal nanoparticles ... | 10/27/2009 |
| 7608367 | Vitreous carbon mask substrate for X-ray lithography The present invention is directed to the use of vitreous carbon as a substrate material for providing masks for X-ray lithography. The new substrate also enables a small thickness of the mask absorber used to pattern the resist, and this enables improved mask accura... | 10/27/2009 |
| 7608233 | Direct synthesis of calcium borohydride A method is disclosed for directly preparing an alkaline earth metal borohydride, i.e. Ca(BH4)2, from the alkaline earth metal hydride and the alkaline earth metal boride. The borohydride thus prepared is doped with a small portion of a metal c... | 10/27/2009 |
| 7608174 | Apparatus and method for electroforming high aspect ratio micro-parts A fixture is disclosed to more easily affix a workpiece in the proper orientation and spacing with sealed electrical interconnection within an electrochemical plating bath. The workpiece can be any planar metallic or non-metallic substrate such as a silicon wafer co... | 10/27/2009 |
| 7602307 | Portable modular detection system Disclosed herein are portable and modular detection devices and systems for detecting electromagnetic radiation, such as fluorescence, from an analyte which comprises at least one optical element removably attached to at least one alignment rail. Also disclosed are ... | 10/13/2009 |
| 7595349 | Thermally cleavable surfactants Two new surfactant molecules are reported which contain thermally labile Diels-Alder adducts connecting the polar and non-polar sections of each molecule. The two surfactants possess identical non-polar dodecyl tail segments but exhibit different polar headgroups. T... | 09/29/2009 |
| 7560028 | Complex admixtures of clathrate hydrates in a water desalination method Disclosed is a method that achieves water desalination by utilizing and optimizing clathrate hydrate phenomena. Clathrate hydrates are crystalline compounds of gas and water that desalinate water by excluding salt molecules during crystallization. Contacting a hydra... | 07/14/2009 |
| 7556945 | Method for converting sucrose to β-D-glucose Disclosed is an apparatus and method for continuously converting sucrose to β-D-glucose. The method comprises a three-stage enzymatic reactor in which an aqueous solution of sucrose is first converted into a solution of fructose and α-D-glucose by passing it throu... | 07/07/2009 |
| 7534334 | Apparatus and method for concentrating and filtering particles suspended in a fluid Disclosed is a device for separating and concentrating particles suspended in a fluid stream by using dielectrophoresis (DEP) to trap and/or deflect those particles as they migrate through a fluid channel. The method uses fluid channels designed to constrain a liqui... | 05/19/2009 |
| 7534315 | Method for dialysis on microchips using thin porous polymer membrane Laser-induced phase-separation polymerization of a porous acrylate polymer is used for in-situ fabrication of dialysis membranes inside glass microchannels. A shaped 355 nm laser beam is used to produce a porous polymer membrane with a thickness of about 15 μm, whi... | 05/19/2009 |
| 7527977 | Protein detection system The present embodiment describes a miniature, microfluidic, absorption-based sensor to detect proteins at sensitivities comparable to LIF but without the need for tagging. This instrument utilizes fiber-based evanescent-field cavity-ringdown spectroscopy, in combina... | 05/05/2009 |
| 7499841 | Application for managing model-based material properties for simulation-based engineering An application for generating a property set associated with a constitutive model of a material includes a first program module adapted to receive test data associated with the material and to extract loading conditions from the test data. A material model driver is... | 03/03/2009 |
| 7486399 | Method for mapping a natural gas leak A system is described that is suitable for use in determining the location of leaks of gases having a background concentration. The system is a point-wise backscatter absorption gas measurement system that measures absorption and distance to each point of an image. ... | 02/03/2009 |
| 7477614 | Secure videoconferencing equipment switching system and method A switching system and method are provided to facilitate use of videoconference facilities over a plurality of security levels. The system includes a switch coupled to a plurality of codecs and communication networks. Audio/Visual peripheral components are connected... | 01/13/2009 |
| 7465419 | Method for providing a compliant cantilevered micromold A compliant cantilevered three-dimensional micromold is provided. The compliant cantilevered micromold is suitable for use in the replication of cantilevered microparts and greatly simplifies the replication of such cantilevered parts. The compliant cantilevered mic... | 12/16/2008 |
| 7450081 | Compact low frequency radio antenna An antenna is disclosed that comprises a pair of conductive, orthogonal arches and a pair of conductive annular sector plates, wherein adjacent legs of each arch are fastened to one of the annular sector plates and the opposite adjacent pair of legs is fastened to t... | 11/11/2008 |
| 7420442 | Micromachined microwave signal control device and method for making same A method for fabricating a signal controller, e.g., a filter or a switch, for a coplanar waveguide during the LIGA fabrication process of the waveguide. Both patterns for the waveguide and patterns for the signal controllers are created on a mask. Radiation travels ... | 09/02/2008 |
| 7390377 | Bonding thermoplastic polymers We demonstrate a new method for joining patterned thermoplastic parts into layered structures. The method takes advantage of case-II permeant diffusion to generate dimensionally controlled, activated bonding layers at the surfaces being joined. It is capable of prod... | 06/24/2008 |
| 7386352 | Modular sensor network node A distributed wireless sensor network node is disclosed. The wireless sensor network node includes a plurality of sensor modules coupled to a system bus and configured to sense a parameter. The parameter may be an object, an event or any other parameter. The node co... | 06/10/2008 |
