Intellectual Property Law

US Patent 7750071 - Electrically conductive, optically transparent SWCNT film

Posted on July 08, 2010
http://www.freepatentsonline.com/7750071.htmlThis patent is based on research conducted at Clemson University and has some early priority (3/22/2001) toward transparent SWCNT electrodes. Claim 1 reads:1. An electrically conductive film comprising:a plurality of single walled carbon nanotubes, wherein the film is optically transparent and electrically conductive, wherein the film has an optical transmission greater than 80%...

US Patent 7749801 - Phase change memory fabricated with CNTs

Posted on July 08, 2010
http://www.freepatentsonline.com/7749801.htmlPhase change memory is appearing to be the primary choice for a next-generation universal non-volatile memory. This patent from Korea Advanced Institute of Science & Technology teaches a way to reduce the contact area between the bottom electrode and phase change material using vertical carbon nanotubes thus increasing the integration density of phase change memory cells...

US Patent 7748272 - Integrated MEMS sensor suite

Posted on July 07, 2010
http://www.freepatentsonline.com/7748272.htmlThis patent from Morgan Research Corporation teaches using a thick layer of SOI silicon to form the basis of three different types of MEMS sensors (accelerometer, thermal, humidity) leading to reduced packaging...

US Patent 7749646 - Reversibly activated nanostructured battery

Posted on July 07, 2010
http://www.freepatentsonline.com/7749646.htmlIn conventional electrolytic batteries contact between the electrolyte and the electrode eventually depletes the electrode material. This patent from Alcatel-Lucent teaches a way to avoid this problem by using a nanostructured pattern to periodically separate the electrolyte and the electrode when the battery is not in use...

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US Patent 7749477 - Tracking CNT growth

Posted on July 07, 2010
http://www.freepatentsonline.com/7749477.htmlIn CVD growth of carbon nanotube arrays the nanotubes usually grow from catalytic particles in a root-growth or a tip-growth fashion. During root-growth the catalyst remains on the substrate while during tip growth the catalyst particle remains on the tip of the nanotube during growth...

US Patent 7749407 - High work function transparent conductors

Posted on July 07, 2010
http://www.freepatentsonline.com/7749407.htmlOrganic LEDs usually use transparent electrode materials to avoid unwanted light absorption. One problem with conventional transparent electrode materials is that the work function is too low for effective injection of holes into the electroluminescent material of the OLED...

US Patent 7747546 - Nanotube spin memory

Posted on July 05, 2010
http://www.freepatentsonline.com/7747546.htmlIsis Innovation has been established to help commercialize technologies developed from Oxford University. This recent patent teaches a spintronic-type memory structure based on fullerene molecules formed within a carbon nanotube...

US Patent 7745810 - Nanotube film conductive trace

Posted on July 05, 2010
http://www.freepatentsonline.com/7745810.htmlThis patent from Nantero has priority going back to 2001 and includes some basic claims to conductive nanotube ribbons formed on a substrate. Claim 1 reads:1. An assembly including a substrate and a conductive trace disposed on the substrate, the trace having at least two sides that are substantially parallel to each other, wherein the trace includes a plurality of unaligned nanotubes for providing a plurality of conductive pathways along the trace...

US Patent 7745528 - Graphene-rubber nanocomposites

Posted on July 05, 2010
http://www.freepatentsonline.com/7745528.htmlThis patent from Princeton University teaches a method to incorporate graphene into a polymer matrix to improve the strength and electrical conductivity of seals an packaging materials. Claim 1 reads:1. A polymer composition, comprising:a polymer matrix comprising an elastomer; anda functional graphene which displays no signature of graphite and/or graphite oxide, as determined by X-ray diffraction...

US Patent 7745498 - Oxidized nanowires

Posted on July 04, 2010
http://www.freepatentsonline.com/7745498.htmlIn order to form transistor structures using nanostructured materials a reliable method is required to generate the dielectric oxides with respect to the nanochannel. This patent from Nanosys includes some basic claims to oxidized silicon nanowires...

US Patent 7745330 - Attaching CNTs to a substrate

Posted on July 04, 2010
http://www.freepatentsonline.com/7745330.htmlThis patent from U.S. Naval Research teaches ways to modify carbon nanotubes in order to integrate them with silicon substrates and perform electrical experiments. Claim 1 reads:1. A method of connecting a carbon nanotube to a substrate, comprising:exposing the carbon nanotube to a vapor from a substance of fluoride salt deposited on the substrate...

US Patent 7745302 - TEM grid using CNTs

Posted on July 04, 2010
http://www.freepatentsonline.com/7745302.htmlTransmission electron microscopy is one of the most important techniques for the examination of nanoscale structures. This patent from Hon Hai Precision teaches a way to enhancing the electrical conductivity and strength of TEM grids by using carbon nanotubes...

US Patent 7745047 - Nanographene platelets for Li ion batteries

Posted on July 02, 2010
http://www.freepatentsonline.com/7745047.htmlNanotek Instruments is developing new low-cost nanomaterials for applications including solar cells, batteries, and fuel cells. This latest patent is related to Li ion batteries using graphene platelets to form one of the electrodes...

US Patent 7745004 - Polymer coated magnetic particles

Posted on July 02, 2010
http://www.freepatentsonline.com/7745004.htmlHigh frequency mobile communication devices often produce unnecessary radio emissions which deteriorate communication quality. Magnetic films having a nanogranular structure can be used as an EM shield to avoid this problem...

US Patent 7745001 - Nanoassemblies containing qdots and magnetic nanoparticles

Posted on July 02, 2010
http://www.freepatentsonline.com/7745001.htmlThis patent from the University of New Orleans teaches a method to encapsulate luminescent quantum dots with magnetic nanoparticles enabling a biotag detectable by both optical and magnetic techniques. Claim 1 reads:1...

US Patent 7745101 - Nanoparticle liftoff patterning

Posted on July 02, 2010
http://www.freepatentsonline.com/7745101.htmlLift-off is a process used in microfabrication involving the additive patterning of thin films. This patent from Eastman Kodak teaches a similar method for patterning metal nanoparticles. Claim 1 reads: 1. A method of making a metallic pattern comprising:depositing a layer of photoresist on a substrate;forming a pattern of opening in said photoresist;depositing a layer of metal nanoparticles on said photoresist and on said pattern;removing said photoresist and overlying metal nanoparticles on said photoresist; andsintering the remaining said nanoparticles to form a metallic pattern.

US Patent 7744963 - Driving Dip Pen Nanolithography® with electric or magnetic force

Posted on July 01, 2010
http://www.freepatentsonline.com/7744963.htmlThis patent from Northwestern University has priority going back to 2001 and appears basic to a driving method used by NanoInk in Dip Pen Nanolithography®. Claim 1 reads:1. A method of nanolithography, comprising:providing a substrate;providing a tip comprising an internal cavity having an external opening to the surface of said tip, wherein said opening comprises an internal diameter of less than about 200 nanometers;loading said cavity with a deposition compound, wherein said deposition compound does not pass through said external opening in the absence of a driving force; andsubjecting said tip to a driving force to deliver said deposition compound through said external opening to be deposited on said substrate;wherein the driving force is selected from the group consisting of an electrical and a magnetic driving force, wherein, for the electrical driving force, the deposition compound is a charged compound subjected to an applied electric field, and wherein, for the magnetic driving force, the deposition compound is a magnetic compound or a magnetically tagged compound subjected to a magnetic field.

US Patent 7744956 - CNT patterning to eliminate shielding effects

Posted on July 01, 2010
http://www.freepatentsonline.com/7744956.htmlHigh efficiency electron emitters may be manufactured by growing arrays of carbon nanotubes in a high density however there is an ultimate limit to the efficiency determined by a screening effect in which electrostatic repulsion effects come into play when the array density is too high...

US Patent 7744947 - Method of forming CNT metallic wires

Posted on July 01, 2010
http://www.freepatentsonline.com/7744947.htmlThis patent from Korea Advanced Institute of Science and Technology teaches a way to form metallic wiring on a semiconductor substrate using carbon nanotubes coated in recesses imprinted on the substrate.1...

US Patent 7744843 - Bulk synthesis of CNTs

Posted on July 01, 2010
http://www.freepatentsonline.com/7744843.htmlThis patent from Drexel University teaches a way of using chlorine gas to facilitate the mass production of single walled carbon nanotubes. Claim 5 reads:5. A method for synthesizing carbon nanotubes, comprising:extracting metal from a carbide substrate using one or more halogens at a temperature in the range of from about 700 C...

US Patent 7744816 - Multilayer nanopore sensor

Posted on June 30, 2010
http://www.freepatentsonline.com/7744816.htmlA variety of designs have been proposed and implemented which use nanopores for molecular analysis. This latest design from Intel uses multiple sensor layers to detect multiple electrical properties of analytes...

US Patent 7744793 - Growing nanotube forrests

Posted on June 30, 2010
http://www.freepatentsonline.com/7744793.htmlThis patent teaches a method of bulk carbon nanotube production which reduces impurities and grows a nanotube forest. Claim 1 reads:1. A method for producing a nanotube film, the method comprising:supplying a carbon-bearing precursor gas and using the carbon-bearing precursor gas for growing a first nanotube forest on a first substrate positioned within a reaction chamber having an access port, wherein the reaction chamber is positioned in a furnace; andpulling a first length of nanotube film from the first nanotube forest on the first substrate through the access port while the nanotube forest is in the reaction chamber...

US Patent 7744440 - CNT growth with inactivation layer

Posted on June 30, 2010
http://www.freepatentsonline.com/7744440.htmlCarbon nanotube arrays are commonly grown from catalytic metal layers using a CVD method in order to form wide area electronic devices such as flat panel displays. This method from Samsung teaches using fullerene material as an inactivation layer to mask portions of the catalytic metal and control the areas where nanotubes are grown...

US Patent 7743835 - Nanoparticle-enhanced shape-conforming materials

Posted on June 30, 2010
http://www.freepatentsonline.com/7743835.htmlThis patent from Baker Hughes Inc. deals with shape memory compositions used to fill annular spaces or seals and which use nanostructured particles to assist in heating the composition. Claim 1 reads: 1. An apparatus, comprising:a composition that contains:a shape-conforming material having a shape memory property; andnanoparticles in an amount sufficient to heat the shape-conforming material to near or above a glass transition temperature of the shape-conforming material when the nanoparticles are exposed to a selected form of energy,wherein the composition obtains a selected shape when compressed at near or above the glass transition temperature of the shape-conforming material...

US Patent 7742322 - Fused nanocrystal films

Posted on June 27, 2010
http://www.freepatentsonline.com/7742322.htmlInVisage is a company implementing high-resolution and high-performance imaging devices with a small form factor by using quantum dot films. This appears to be a basic Qdot patent covering their technology...

US Patent 7741933 - Electromagnetic composite metamaterial

Posted on June 27, 2010
http://www.freepatentsonline.com/7741933.htmlThis patent from Charles Stark Draper Labs teaches a system to implement a metamaterial based on an array of MEMS piezoelectric resonators. Claim 1 reads:1. An electromagnetic composite metamaterial comprising:an electromagnetic medium; anda plurality of spaced electromechanical resonators disposed in or on the electromagnetic medium configured to control electromagnetic wave propagation properties in the electromagnetic composite metamaterial.

US Patent 7741765 - CNT field emitter with support wire

Posted on June 27, 2010
http://www.freepatentsonline.com/7741765.htmlChemical vapor deposition is a common technique used to manufacture electron emitting devices based on carbon nanotubes. One deficiency in this method is that electrically induced mechanical stress can weaken the connection between the nanotubes and a cathode on which the nanotubes are grown...

US Patent 7741647 - Random nanowire array bridge

Posted on June 23, 2010
http://www.freepatentsonline.com/7741647.htmlMuch of the early research in silicon nanowires has emerged from Charles Lieber's group at Harvard and Nanosys which has begun turning the basic research into commercial reality. However, HPLabs has also contributed to some basic nanowire research...

US Patent 7741638 - Memristive control layer

Posted on June 23, 2010
http://www.freepatentsonline.com/7741638.htmlThis appears to be one of HP's patents related to their "memristor" version of RRAM in which a control layer such as TiO2-x is included as a source or sink of oxygen vacancies to control the resistance level...

US Patent 7741232 - Electron emitting nanofabric

Posted on June 23, 2010
http://www.freepatentsonline.com/7741232.htmlIn order to form large area electronic displays from plastic or flexible material new manufacturing techniques will need to be developed. This patent from Ideal Star Inc. teaches using woven fabrics as an alternative to planar deposition manufacturing for developing wide area field emission material for displays...

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