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| Number | Title | Issue Date |
| 7399400 | Nanobiosensor and carbon nanotube thin film transistors The present invention is directed to systems and methods for detecting biological and chemical species in liquid and gaseous phase. The systems and methods utilize carbon nanotubes to enhance sensitivity and selectivity towards the reacting species by decreasing int... | 07/15/2008 |
| 7367215 | Formation of metal nanowires for use as variable-range hydrogen sensors The present invention provides for variable-range hydrogen sensors and methods for making same. Such variable-range hydrogen sensors comprise a series of fabricated Pd—Ag (palladium-silver) nanowires—each wire of the series having a different Ag to Pd ratio—wi... | 05/06/2008 |
| 7300634 | Photocatalytic process A photocatalytic cleaner for air or water includes a photocatalytic material coating a substrate. An anode, positioned a predetermined distance from the substrate, includes a phosphor that emits ultraviolet light in response to bombardment by electrons from a field ... | 11/27/2007 |
| 7287412 | Method and apparatus for sensing hydrogen gas A hydrogen sensor and/or switch fabricated from an array of nanowires or a nanoparticle thick film composed of metal or metal alloys. The sensor and/or switch demonstrates a wide operating temperature range and shortened response time due to fabrication materials an... | 10/30/2007 |
| 7244513 | Stain-etched silicon powder The present invention is for a porous silicon powder comprising silicon particles wherein the outermost layers of said particles are porous. The present invention is also directed to a method of making this porous silicon powder using a stain etch method. The presen... | 07/17/2007 |
| 7237429 | Continuous-range hydrogen sensors The present invention provides for novel hydrogen sensors and methods for making same. In some embodiments, such novel hydrogen sensors are continuous-range hydrogen sensors comprising Pd—Ag nanoparticles arrayed as nanowires or two-dimensional shapes on a resisti... | 07/03/2007 |
| 7195938 | Activation effect on carbon nanotubes Particles, which may include nanoparticles, are mixed with carbon nanotubes and deposited on a substrate to form a cold cathode. The particles enhance the field emission characteristics of the carbon nanotubes. An additional activation step may be performed on the d... | 03/27/2007 |
| 7176877 | High voltage pulse driver with capacitive coupling A high voltage driver with capacitive coupling that is useful in the presence of the high power supply ripple common with higher-voltage systems. It permits extreme ranges of duty cycle, but without the limitations of transformer magnetics, or the increased complexi... | 02/13/2007 |
| 7125308 | Bead blast activation of carbon nanotube cathode Activation of printed or dispensed carbon nanotube (CNT) film using a particle-blasting technique, also referred to as sandblasting or bead blasting. The process works by sending particles of material at high enough velocity such that when the particles hit the surf... | 10/24/2006 |
| 7104111 | Formation of metal nanowires for use as variable-range hydrogen sensors The present invention provides for variable-range hydrogen sensors and methods for making same. Such variable-range hydrogen sensors comprise a series of fabricated Pd—Ag (palladium-silver) nanowires—each wire of the series having a different Ag to Pd ratio—wi... | 09/12/2006 |
| 7078716 | Large area electron source By using a large area cathode, an electron source can be made that can irradiate a large area more uniformly and more efficiently than currently available devices. The electron emitter can be a carbon film cold cathode, a microtip or some other emitter. It can be pa... | 07/18/2006 |
| 7057203 | Low work function material The present invention is directed toward methods for incorporating low work function metals and salts of such metals into carbon nanotubes for use as field emitting materials. The present invention is also directed toward field emission devices, and associated compo... | 06/06/2006 |
| 7040948 | Enhanced field emission from carbon nanotubes mixed with particles The present invention is directed toward cathodes and cathode materials comprising carbon nanotubes (CNTs) and particles. The present invention is also directed toward field emission devices comprising a cathode of the present invention, as well as methods for makin... | 05/09/2006 |
| 6849911 | Formation of metal nanowires for use as variable-range hydrogen sensors The present invention provides for variable-range hydrogen sensors and methods for making same. Such variable-range hydrogen sensors comprise a series of fabricated Pd—Ag (palladium-silver) nanowires—each wire of the series having a different Ag to Pd ratio—wi... | 02/01/2005 |
| 6798127 | Enhanced field emission from carbon nanotubes mixed with particles The present invention is directed toward cathodes and cathode materials comprising carbon nanotubes (CNTs) and particles. The present invention is also directed toward field emission devices comprising a cathode of the present invention, as well as methods for makin... | 09/28/2004 |
| 6664728 | Carbon nanotubes with nitrogen content Field emission characteristics of carbon films are improved by changing the conditions of the growth of the films, by adding nitrogen, or substitutes to the nitrogen for hydrogen, in the carbon film growth process. Resulting field emission cathodes exhibi... | 12/16/2003 |
