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Class 977/750 - Single-walled


Subclass of Class 977 - Nanotechnology
Definition: Subject matter wherein the CNT possesses only one wrapped
No. of patents: 24
Last issue date: 08/26/2008


NumberTitleIssue Date
7416699Carbon nanotube devices
Nanotubes and nanotube-based devices are implemented in a variety of applications. According to an example embodiment of the present invention, a nanotube is adapted to pass current between two conductive elements. In one implementation, each conductive element incl...
08/26/2008
7411019Polymer composites containing nanotubes
The present invention relates to polymer composite materials containing carbon nanotubes, particularly to those containing singled-walled nanotubes. The invention provides a polymer composite comprising one or more base polymers, one or more functionalized m-phenyle...
08/12/2008
7387735Method of isolating semiconducting carbon nanotubes
A method of isolating semiconducting carbon nanotubes includes mixing carbon nanotubes with a mixed acid solution of nitric acid and sulfuric acid to obtain a dispersion of carbon nanotubes, stirring the carbon nanotube dispersion, and filtering the carbon nanotube ...
06/17/2008
7344691System and method for manipulating nanotubes
A system and method for manipulation of nanotubes using an organic material that is presented to the nanotubes. Exemplary types of manipulation include cutting nanotubes into shortened nanotubes, dispersing nanotubes, enabling dissolution of nanotubes, and noncovale...
03/18/2008
7343274Sensor and method for detecting electric contact degradation
A probe cell monitors conditions within electrical power transmission and switchgear apparatus to detect degradation of stressed components. The probe cell is a hardware simulation of components of a specific unit of electrical power apparatus, including electrodes ...
03/11/2008
7338705Static dissipation treatments for optical package windows
An optically transparent conductive material is disposed directly or indirectly on an inside surface of a cover material for static dissipation in an optical switching device. The optically transparent conductive material forms an electrically continuous film. The o...
03/04/2008
7338915Ropes of single-wall carbon nanotubes and compositions thereof
This invention provides a method of making single-wall carbon nanotubes by laser vaporizing a mixture of carbon and one or more Group VIII transition metals. Single-wall carbon nanotubes preferentially form in the vapor and the one or more Group VIII transition meta...
03/04/2008
7264876Polymer-wrapped single wall carbon nanotubes
The present invention relates to new compositions of matter and articles of manufacture comprising SWNTs as nanometer scale conducting rods dispersed in an electrically-insulating matrix. These compositions of matter have novel and useful electrical, mechanical, and...
09/04/2007
7262266Copolymerization of polybenzazoles and other aromatic polymers with carbon nanotubes
The present invention is generally directed to the block copolymerization of rigid rod polymers with carbon nanotubes (CNTs), the CNTs generally being shortened, to form nanotube block copolymers. The present invention is also directed to fibers and other shaped art...
08/28/2007
7247897Conductive line for a semiconductor device using a carbon nanotube including a memory thin film and semiconductor device manufactured
In a method of forming a conductive line for a semiconductor device using a carbon nanotube and a semiconductor device manufactured using the method, the method includes activating a surface of an electrode of the semiconductor device using surface pretreatment to c...
07/24/2007
7247290Spinning, processing, and applications of carbon nanotube filaments, ribbons, and yarns
Coagulation spinning produces structures such as fibers, ribbons, and yarns of carbon nanotubes. Stabilization, orientation, and shaping of spun materials are achieved by post-spinning processes. Advantages include the elimination of core-sheath effects due to carbo...
07/24/2007
7204970Single-wall carbon nanotubes from high pressure CO
The present invention discloses the process of supplying high pressure (e.g., 30 atmospheres) CO that has been preheated (e.g., to about 1000° C.) and a catalyst precursor gas (e.g., Fe(CO)5) in CO that is kept below the catalyst precursor decomposition ...
04/17/2007
7205069Membrane comprising an array of single-wall carbon nanotubes
This invention relates generally to membranes comprising an array of single-wall carbon nanotubes (SWNT) wherein the membrane is nanoporous. In one embodiment, the membrane comprises a substantially two-dimensional array of a homogeneous population of single-walled ...
04/17/2007
7169329Carbon nanotube adducts and methods of making the same
The invention provides an adduct comprising a carbon nanotube and a transitional metal coordination complex, wherein the metal of the complex is attached by a covalent linkage to at least one oxygen moiety on the nanotube. ...
01/30/2007
7150864Ropes comprised of single-walled and double-walled carbon nanotubes
The present invention concerns a method for growing carbon nanotubes using a catalyst system that preferentially promotes the growth of single- and double-wall carbon nanotubes, rather than larger multi-walled carbon nanotubes. Ropes of the carbon nanotubes are form...
12/19/2006
7118693Conformal coatings comprising carbon nanotubes
The invention is directed to conformal coatings that provide excellent shielding against electromagnetic interference (EMI). A conformal coating comprises an insulating layer and a conducting layer containing electrically conductive material. The insulating layer co...
10/10/2006
7105596Methods for producing composites of single-wall carbon nanotubes and compositions thereof
This invention relates generally to a method for producing composites of single-wall carbon nanotubes (SWNTs) and compositions thereof. In one embodiment, the present invention involves a method of producing a composite material that includes a matrix and a carbon n...
09/12/2006
7074980Purification process of carbon nanotubes
The present invention describes a new method for the purification of carbon nanotubes from contaminants deriving from industrial production, constituted by amorphous or carbon crystalline material and metals used for catalysis. The method provides for their organic ...
07/11/2006
7063753Electronic device utilizing magnetic nanotubes
Present invention provides enabling techniques of integrating novel nanotube elements into semiconductor devices, particularly in transistors, as gate channels or/and as interconnects. This is done in a series of process steps, which consist of fabricating magnetic-...
06/20/2006
6692717Catalytic growth of single-wall carbon nanotubes from metal particles
Single-walled carbon nanotubes have been synthesized by the catalytic decomposition of both carbon monoxide and ethylene over a supported metal catalyst known to produce larger multi-walled nanotubes. Under certain conditions, there is no termination of n...
02/17/2004
6683783Carbon fibers formed from single-wall carbon nanotubes
A method for purifying a mixture comprising single-wall carbon nanotubes and amorphous carbon contaminate is disclosed. The method includes the steps of heating the mixture under oxidizing conditions sufficient to remove the amorphous carbon, followed by ...
01/27/2004
6673057High flux liquid transport members comprising two different permeability regions
The present invention is a liquid transport member with significantly improved liquid handling capability, which has at least one bulk or inner region with a high average permeability, completely circumscribed by a wall region. The wall region further com...
01/06/2004
6645455Chemical derivatization of single-wall carbon nanotubes to facilitate solvation thereof; and use of derivatized nanotubes to form catalyst-containing seed materials for use in making carbon fibers
This invention is directed to making chemical derivatives of carbon nanotubes and to uses for the derivatized nanotubes, including making arrays as a basis for synthesis of carbon fibers. In one embodiment, this invention also provides a method for prepar...
11/11/2003
6613198Pulsed arc molecular beam process
A process for preparing a material in which a gas mixture is subjected to a a temperature of at least 1,000 degrees Celsius while its pressure increased to at least 1,000 Torr. The pressurized hot gas mixture, which contains inert gas and fullerene ions, ...
09/02/2003
 
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