Intellectual Property Law

US Patent 7485366 - Thick film magnetic nanoparticulate composite

Posted on February 03, 2009
http://www.freepatentsonline.com/7485366.htmlMagnetic materials are formed with domains based on regions of atomic alignment. However, the proximal arrangement of multiple of these domains can cause undesirable interference or resonance in some instances...

US Patent 7485279 - Controlled diameter growth of nanotubes

Posted on February 03, 2009
http://www.freepatentsonline.com/7485279.htmlThis patent from Yale teaches a method of tailoring the diameter of nanotubes which is important to bandgap of semiconductor nanotubes using a porous template. Claim 1 reads:1. A method for producing a nanostructure with a specified diameter or cross-sectional area, comprising:specifying the diameter or cross-sectional area of the nanostructure;selecting a mesoporous siliceous framework having pores with a pore size that has a predetermined dimensional relationship with the diameter or cross-sectional area of the nanostructure, said mesoporous siliceous framework containing metal ions dispersed in substitutional sites and forming a source of catalytic sites; andcontacting, in a reactor, the mesoporous siliceous framework with a reactant at a temperature sufficient to produce the nanostructures with the specified diameter or cross-sectional area.

US Patent 7484423 - Integrated circuit quality analysis using carbon nanotube FET

Posted on February 03, 2009
http://www.freepatentsonline.com/7484423.htmlThe fabrication techniques necessary to produce a high density of carbon nanotube transistors on a substrate do not currently exist but this patent from IBM teaches that CNT transistors can other uses in quality analysis which may be more easily implemented in the near term...

US Patent 7482652 - Triple walled carbon nanotube memory cell

Posted on February 01, 2009
http://www.freepatentsonline.com/7482652.htmlCarbon nanotube transistor design has been gradually developing over the past decade but has largely been based on single walled nanotubes some of which possess semiconductive properties but are difficult to separate from conductive nanotubes...

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US Patent 7482619 - Nanoflash memory using insulating and charge trapping nanoparticles

Posted on February 01, 2009
http://www.freepatentsonline.com/7482619.htmlSince electronic memory requires the greatest density of transistor fabrication it is likely that these applications will be the first to extensively incorporate nanomaterials. Samsung already has several basic patents in nanomaterial-based non-volatile memory and this patent provides some very broad claims to a charge trap memory based on multiple nanoparticle types which reduces leakage current...

US Patent 7483197 - Multicolor micromirror display

Posted on February 01, 2009
http://www.freepatentsonline.com/7483197.htmlThis patent originally from IDC (acquired by Qualcomm for mobile device displays) has very early priority going back to 1994 and includes basic claims to four color interferometric micromirror displays. Claim 1 reads:1...

US Patent 7483112 - CNT liquid crystal on silicon micro-display

Posted on February 01, 2009
http://www.freepatentsonline.com/7483112.htmlIn order to achieve color uniformity in a type of liquid crystal display this patent from Document Scanner Technology (formerly Sysview) and Splendid Optronics teaches the inclusion of nanotubes to control a cell gap...

US Patent 7482727 - Negative refractive index nanowire array laminate

Posted on February 01, 2009
http://www.freepatentsonline.com/7482727.htmlThis patent from HP teaches perpendicularly arranged arrays of nanowires used to achieve negative refractive index metamaterials. Claim 1 reads:1. A composite material exhibiting at least one of a negative effective permittivity and a negative effective permeability for incident radiation at an operating wavelength, comprising:a dielectric layer generally parallel to a dielectric layer plane; anda first plurality of nanowire pairs disposed in said dielectric layer, each of said first plurality of nanowire pairs comprising substantially parallel conductive nanowires of short length and separation relative to said operating wavelength;wherein each of said first plurality of nanowire pairs is substantially coplanar with a first plane substantially parallel to said dielectric layer plane, andsaid first plurality of nanowire pairs forms a first pattern within said first plane characterized by nanowire pair locations and nanowire pair orientations within said first plane, and wherein said first pattern comprises a first regularly-spaced array of commonly oriented nanowire pairs and forms a second regularly-spaced array of nanowire pairs that is interspersed with said first regularly-spaced array of nanowire pairs and commonly oriented in a direction substantially perpendicular to said first regularly-spaced array of nanowire pairs.

PatentCluster - New Free Patent Analysis Tool

Posted on January 30, 2009
A new patent analysis tool debuted this month in beta mode based on technological concept clustering.http://www.patentcluster.com/From the founder-"PatentCluster employs accurate, efficient open source search and clustering algorithms to help the patent searcher discover diverse and relevant groups of semantically related patents described with meaningful labels...

US Patent 7482608 - Nuclear powered quantum dot light source

Posted on January 29, 2009
http://www.freepatentsonline.com/7482608.htmlThis patent from Iso-Science Laboratories is based on the finding that quantum dots (semiconductor nanocrystals) exhibit radiation resistance and uses alpha or beta particles to power a narrow wavelength light source...

US Patent 7482421 - Self-healing anti-corrosive nanoparticle coating

Posted on January 29, 2009
http://www.freepatentsonline.com/7482421.htmlThis patent from the University of Cincinnati teaches a superprimer based on nanoparticles. Claim 1 reads:1. A hydrophilic composition capable of coating a substrate and curing to provide a hydrophobic film inhibiting corrosion, the composition comprising:a bis-silane comprising between about 15 percent by weight to about 40 percent by weight of the composition;a water soluble or dispersible polymer;a water soluble solvent; andnanoparticles having a mean particle size of ranging between about 0...

US Patent 7482332 - Telomere encoding synthetic DNA nanocircles

Posted on January 29, 2009
http://www.freepatentsonline.com/7482332.htmlTelomeres are regions of DNA having some relationship to lifespan of cells and cancer. This patent from Stanford university teaches a nucleic acid "nanocircle" useful to cancer treatment based on a telomere repeat sequence...

US Patent 7482253 - Fusing nanowires

Posted on January 29, 2009
http://www.freepatentsonline.com/7482253.htmlPatterned arrays of nanowires can exhibit a large resistivity which limit their potential for electrical interconnects. this patent from Hewlett-Packard describes a crystal growth technique used to fuse prefabricated nanowires and reduce the resistance...

US Patent 7482163 - Chemical reactivity determination for nanoparticles

Posted on January 28, 2009
http://www.freepatentsonline.com/7482163.htmlDue to their high surface-to-volume ratio metal nanoparticles such as platinum serve as excellent catalysts for the manufacture of fuels, polymers and drugs. This patent from Nanostellar teaches a method for characterizing the reactivity to achieve better process control...

US Patent 7482059 - Semiconductor nanocrystal with metal coating

Posted on January 28, 2009
http://www.freepatentsonline.com/7482059.htmlThis patent from Evident Technologies teaches a solution to a problem of oxidation of semiconductor nanocrystals (quantum dots) that can reduce the fluorescence properties over time by providing a protective metal coating...

US Patent 7482054 - TiO2/nanoparticle paint mixture

Posted on January 28, 2009
http://www.freepatentsonline.com/7482054.htmlThis patent from Behr Process Corporation teaches improving the effectiveness of titanium dioxide white paste using ZnO nanoparticles to improve the distribution of the particles which is taught to improve the tint strength...

US Patent 7481990 - Nanotube segregation via osmylation or ruthenylation

Posted on January 28, 2009
http://www.freepatentsonline.com/7481990.htmlThis patent from the State University of New York (SUNY) teaches separation chemistries for sorting nanotubes based on osmium tetroxide or ruthenium tetroxide. Claims 1 and 2 read:1. A method of aggregating carbon nanotubes, the method comprising:(a) providing a nanotube dispersion, wherein the nanotube dispersion comprises a plurality of carbon nanotubes, osmium tetroxide and a solvent; and(b) irradiating the nanotube dispersion with ultraviolet light until the carbon nanotubes aggregate, wherein the metallic carbon nanotubes are selectively osmylated...

US Patent 7481989 - Equal length nanotube separation

Posted on January 27, 2009
http://www.freepatentsonline.com/7481989.htmlThis patent based on original research from Richard Smalley's group at Rice University (priority 1997) includes some basic claims to forming uniform length segments of nanotube material. Claim 1 reads:1. A method for producing fullerene nanotubes, said method comprising the steps of:(a) providing a fullerene nanotube-containing material;(b) cutting the fullerene nanotube containing-material to form a mixture of fullerene nanotubes having lengths in the range of about 5 to 500 nm; and(c) fractionating said mixture of fullerene nanotubes to form a fraction of said fullerene nanotubes having substantially equal lengths.

US Patent 7481952 - Electrically conductive PTFE tape including CNT mixture

Posted on January 27, 2009
http://www.freepatentsonline.com/7481952.htmlThis patent from Compagnie Plastic Omnium teaches an electrically conductive PTFE tape with improved electrical conductivity properties based on carbon nanotubes. Claim 1 reads:1. A fluoropolymer tape having two sides,at least one of the sides being an electrically conductive extrusion of a blended mixture, the blended mixture comprising dispersible carbon selected from the group consisting of vapor-grown carbon fibers (VGCF), and combinations of VGCF and carbon nanotubes and polytetrafluoropolymer;wherein the sides comprise extrusions of different blended mixtures and wherein one side of the tape is more electrically conductive than the other side of the tape.

US Patent 7481267 - Anisotropic thermal CNT/ceramic film

Posted on January 27, 2009
http://www.freepatentsonline.com/7481267.htmlThis patent from the University of California System teaches an improved anisotropic thermal interface achieved by carbon nanotube ceramic composites. Claim 1 reads:1. In an application requiring the conduction of heat between an exothermic device and a heat sink surface, the improvement comprising:interposing between said exothermic device and said heat sink surface a heat-spreading layer of a composite comprised of carbon nanotubes dispersed in a matrix of ceramic material, said composite having been uniaxially compressed in a direction transverse to said heat sink surface to provide said composite with a thermal diffusivity in said transverse direction that is lower than the thermal diffusivity in directions parallel to said heat sink surface...

US Patent 7480981 - Microelectromechanical disk drive

Posted on January 27, 2009
http://www.freepatentsonline.com/7480981.htmlMagnetic disk drives allow for high data storage but miniaturization of the entire disk drive itself has been limited by requirements of high mechanical control. This patent from Sony teaches a solution based on microelectromechanical disk drives which may eventually compete with flash memory for portable electronics...

US Patent 7479654 - Nanotube RRAM

Posted on January 22, 2009
http://www.freepatentsonline.com/7479654.htmlThe research into a variety of new materials in the last decade have resulted in potential for RRAM as a new form of non-volatile memory using resistance as a bit storage element. This patent from Nantero teaches an RRAM memory array based on their nanotube ribbon switches...

US Patent 7479404 - Nanoporous photonic crystal biosensor

Posted on January 22, 2009
http://www.freepatentsonline.com/7479404.htmlThis patent from the University of Illinois teaches a cheaper method of manufacturing high sensitivity protein sensors based on nanoporous films. Claim 16 reads:16. A method of making a sensor comprising:(a) curing a layer of nanoporous material having a low refractive index onto a substrate;(b) depositing a high dielectric constant dielectric material on top of the nanoporous material; and(c) patterning the high dielectric constant dielectric material into a sub-wavelength period grating structure.

US Patent 7479325 - Isotope doped carbon nanotube

Posted on January 21, 2009
http://www.freepatentsonline.com/7479325.htmlIsotopic labeling is a method for tracking a sample during chemical processing. This patent from Tsinghua University teaches an isotope doped carbon nanotube useful for such labeling. Claim 1 reads:1. An isotope-doped nanotube of an element, comprising:an elongated tube structure including a first nanotube segment made of first isotopes of said element, and a second nanotube segment made of second isotopes of said element, the first and second nanotube segments selectively occurring along an axial direction of said elongated tube structure.

US Patent 7479052 - Growth of CNT field emitters in amorphous carbon layer

Posted on January 21, 2009
http://www.freepatentsonline.com/7479052.htmlCarbon nanotube based field emission arrays have the potential to provide larger area flat panel displays with higher energy efficiency. However, if the density of the nanotubes is too high a field screening effect can result which reduces the efficiency...

US Patent 7477441 - Nanowire array anti-stiction layer for MEMS

Posted on January 16, 2009
US Patent 7,477,441Stiction is a critical problem to many micromachining devices that ultimately limits the ability to miniaturize mechanical structures via lithography. Some conventional solutions include chemical coatings having anti-sticking surfaces and the use of mechanical standoffs providing spacing...

US Patent 7476982 - Electrically conductive nanofiber adhesive

Posted on January 16, 2009
US Patent 7,476,982This patent from the Regents of the University of California teaches a potential replacement for solder based IC connection in the form of nanofibers that could help eliminate problems of thermal mismatch during packaging which result in integrated circuit malfunction...

US Patent 7476967 - Porous alumina/CNT thermal interface

Posted on January 15, 2009
US Patent 7,476,967In order to maximize the thermal conductive properties of carbon nanotubes this patent from Intel teaches aligning the nanotubes in an nanoporous alumina template. Claim 1 reads:1. A device comprising:an integrated circuit die; anda thermal interface device coupled with a surface of the die, the thermal interface device comprising a layer of a porous metal oxide, the layer comprising a first surface and an opposing second surface, and a number of carbon nanotubes disposed in pores of the porous metal oxide layer, the carbon nanotubes extending beyond the first surface and the second surface of the porous metal oxide layer.

US Patent 7476889 - Radiation protective clothing using nanomaterials

Posted on January 15, 2009
US Patent 7,476,889This patent assigned to Meridian Research and Development with priority possibly going back as far as 1998 (via continuations-in-part) includes some very basic claims to using nanomaterial/polymer composites in clothing for radiation protection...

US Patent 7476765 - Addressable nanoparticle field enhancement microscopy

Posted on January 14, 2009
http://www.freepatentsonline.com/7476787.htmlSharp metallic tips or particles have the propery of electromagnetic field enhancement which is well known to be useful to molecular analysis techniques such as Surface Enhanced Raman Spectroscopy. This patent teaches a method to differentiate the signals from different nanoparticles...

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