Did You Know...
...In 1790, the cost to obtain a patent was between $4 and $5.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7999205 | Method of separating foreign particles In an electrostatic separator or a magnetic separator, prior to electrically charging or magnetization of particles in order to carry out separation of mixed powder of particles having different properties from each other, classification is performed by a classifier... | 08/16/2011 |
| 7935906 | Separation and manipulation of a chiral object Among other things, to cause directional motion of chiral objects in a mixture in a chamber, a field is rotated relative to a chamber to cause rotation of the chiral objects. The rotation of the objects caused them to move directionally based on their chirality.... | 05/03/2011 |
| 7884300 | Method of carbon nanotube separation, dispersion liquid and carbon nanotube obtained by the separation method A method of realizing selective separation of metallic single-walled carbon nanotubes and semiconducting carbon nanotubes from bundled carbon nanotubes; and obtaining of metallic single-walled carbon nanotubes separated at high purity through the above method. Metal... | 02/08/2011 |
| 7635822 | Method for treating ground crude potassium salts that contain kieserite The electrostatic separation of ground crude potassium salts containing kieserite is accomplished by mixing the ground crude potassium salt with a conditioning agent containing a combination of an aromatic carboxylic acid or its derivatives, an ammonium salt of an a... | 12/22/2009 |
| 7419574 | Dielectrophoresis device and method having non-uniform arrays for manipulating particles Microfluidic devices according to embodiments of the present invention include an inlet port, an outlet port, and a channel or chamber having a non-uniform array of insulating features on one or more surfaces. Electrodes are provided for generation of a spatially no... | 09/02/2008 |
| 7384666 | Method and apparatus for fabricating quantum dot functional structure, quantum dot functional structure, and optically functioning device Fabrication of a quantum dot functional structure having ultra-fine particles homogeneously distributed in a transparent medium includes depositing such particles having a single particle diameter and uniform structure onto a substrate with the transparent medium. A... | 06/10/2008 |
| 7351376 | Integrated active flux microfluidic devices and methods The invention relates to a microfabricated device for the rapid detection of DNA, proteins or other molecules associated with a particular disease. The devices and methods of the invention can be used for the simultaneous diagnosis of multiple diseases by detecting ... | 04/01/2008 |
| 7347923 | Dielectrophoresis device and method having insulating ridges for manipulating particles Embodiments of the present invention provide methods and devices for manipulating particles using dielectrophoresis. Insulating ridges and valleys are used to generate a spatially non-uniform electrical field. Particles may be concentrated, separated, or captured du... | 03/25/2008 |
| 7347333 | Ultra clean air separator system A system and process for separating high and low density materials by air flow. Mixed solid material is delivered into an entrance of a cascade separation chamber where it is allowed to free fall and tumble over inclined surfaces. A fan forces air through a “close... | 03/25/2008 |
| 7304258 | System for transporting and selectively sorting particles and method of using the same A system for transporting and selectively sorting particles includes a first wall and a traveling wave grid extending along the first wall. The system includes a second wall having a passage extending therethrough and a gate operatively associated with the passage. ... | 12/04/2007 |
| 7294503 | Microfabricated crossflow devices and methods A microfluidic device for analyzing and/or sorting biological materials (e.g., molecules such as polynucleotides and polypeptides, including proteins and enzymes; viruses and cells) and methods for its use are provided. The device and methods of the invention are us... | 11/13/2007 |
| 7217901 | System for transporting and selectively sorting particles and method of using the same A system for transporting and selectively sorting particles includes a first wall and a traveling wave grid extending along the first wall. The system includes a second wall having a passage extending therethrough and a gate operatively associated with the passage. ... | 05/15/2007 |
| 7192553 | In situ sterilization and decontamination system using a non-thermal plasma discharge A sterilization and decontamination system in which a non-thermal plasma discharge device is disposed upstream of a suspension media (e.g., a filter, electrostatic precipitator, carbon bed). The plasma discharge device generates a plasma that is emitted through aper... | 03/20/2007 |
| 7169282 | Dielectrophoresis apparatus Devices for filtering fluids using dielectrophoresis are disclosed. ... | 01/30/2007 |
| 7161107 | Method, arrangement and use of an arrangement for separating metallic carbon nanotubes from semi-conducting carbon nanotubes A method for separating metallic carbon nanotubes and semi-conducting carbon nanotubes includes providing a suspension containing a plurality of individual metallic carbon nanotubes and semi-conducting carbon nanotubes in a liquid, for which the dielectric constant ... | 01/09/2007 |
| 7119298 | Method for electrostatically separating particles, apparatus for electrostatically separating particles, and processing system An electrostatic separation apparatus for conductive particles and insulating particles with reduced separation time and improved separating capability, comprises a substantially flat-plate shaped bottom electrode (26) provided on lower side, a substantially ... | 10/10/2006 |
| 7094322 | Use of self-sustained atmospheric pressure plasma for the scattering and absorption of electromagnetic radiation A self-sustained atmospheric pressure system for absorbing or scattering electromagnetic waves using a capillary discharge electrode configuration plasma panel and a method for using the same. Of particular interest is the application of this system to vary the leve... | 08/22/2006 |
| 7077887 | Low pressure impact separator for separation, classification and collection of ultra-fine particles Impact type gas-particle separation is applied to ultra-fine particles by judiciously altering the aerodynamic drag on the particles with respect to their inertia by operation at sub-atmospheric pressures. An impact separator has a housing having a channel in which ... | 07/18/2006 |
| 7073736 | Shredder dust electrostatic separation apparatus and method A shredder dust electrostatic separation apparatus separates and recovers various kinds of crushed pieces included in shredder dust by the use of electrostatic force. The apparatus includes a rotating drum made of a conductive material, which receives supplied shred... | 07/11/2006 |
| 7063777 | Dielectrophoretic particle profiling system and method An apparatus and methods for determining the dielectrophoretic response of particles under various chemical and physical conditions are disclosed. ... | 06/20/2006 |
| 7063213 | Mediating electrostatic separation Methods, systems and media for separating polymer mixtures. A mixture including polymeric components is provided. A particulate media is added to the mixture, where the particulate media can selectively mediate a triboelectric charging of the polymer mixture. The me... | 06/20/2006 |
| 7052531 | Local cleaning system for constructing clean shielded space with no need for dedicated partition wall, using charged air shower unit providing ion wind and local exhaust device A local cleaning system which uses a charged air shower unit for forming a shield curtain by means of an ion wind, and a local exhaust device for exhausting the air containing dirt and dust settled down on the floor by the ion wind to construct a clean shielded spac... | 05/30/2006 |
| 7045734 | Spark induction power conditioner for high tension physical separators A D.C. voltage altering device includes at least one spark induction power conditioner including a first electrode connectable to a high voltage D.C. power source and a second electrode spaced from the first electrode and forming a discharging gap therebetween. The ... | 05/16/2006 |
| 7041925 | Apparatus for the electrostatic separation of particulate mixtures Apparatus for the electrostatic separation of a mixture of particles that exhibit difference in electrical conductivity, comprising: a conductive surface to which conducting particles lose their charge; feeding means for feeding the mixture of particles onto the con... | 05/09/2006 |
| 7041153 | Method of measuring floating dusts In a method of measuring particles floating in an atmosphere, the atmosphere containing the particles is sucked into a container, ions are generated from a discharge electrode disposed in the container to charge the particles with the ions. A dust-collecting electro... | 05/09/2006 |
| 7038460 | Electrostatic dust detector An apparatus for detecting dust in a variety of environments which can include radioactive and other hostile environments both in a vacuum and in a pressurized system. The apparatus consists of a grid coupled to a selected bias voltage. The signal generated when dus... | 05/02/2006 |
| 7033473 | Method and apparatus for combined magnetophoretic and dielectrophoretic manipulation of analyte mixtures Methods and apparatuses for discriminating matter utilizing dielectrophoresis combined with magnetophoresis. A sample having one or more constituents is injected into an inlet port of a chamber. A carrier medium flow is initiated at the inlet port to establish a flo... | 04/25/2006 |
| 7029636 | Electrode discharge, non-thermal plasma device (reactor) for the pre-treatment of combustion air A device for the pre-treatment of combustion air by exposure to non-thermal plasma at substantially atmospheric pressure and a method for operating the same. The device includes an inner electrode having a longitudinal channel defined therein to receive a fuel. An o... | 04/18/2006 |
| 7019244 | Electrostatic precipitator An electrostatic precipitator that removes zinc whiskers from cooling air provided to cool components in an electronics enclosure. The electrostatic precipitator comprises an ionizer configured to apply a charge to zinc whiskers suspended in the cooling air. The ele... | 03/28/2006 |
| 7012209 | Method of gold separation and gold separation device A method of collecting gold by flowing water over a gold collecting medium located in a sluice to induce a positive surface charge on the gold collecting medium. Feeding gold laden material into the sluice with the flowing water to induce a negative surface charge o... | 03/14/2006 |
| 6977033 | Method and apparatus for programmable fluidic processing A method and apparatus for microfluidic processing by programmably manipulating a packet. A material is introduced onto a reaction surface and compartmentalized to form a packet. A position of the packet is sensed with a position sensor. A programmable manipulation ... | 12/20/2005 |
| 6964736 | Method and apparatus for analysis and sorting of polynucleotides based on size The invention relates to a microfabricated device and methods of using the device for analyzing and sorting polynucleotide molecules by size. ... | 11/15/2005 |
| 6955794 | Slot discharge non-thermal plasma apparatus and process for promoting chemical reaction A plasma reactor including a first dielectric having at least one slot defined therethrough, and a segmented electrode including a plurality of electrode segments, each electrode segment is disposed proximate an associated slot. Each electrode segment may be formed ... | 10/18/2005 |
| 6951992 | Corona and static electrode assembly A corona and static electrode assembly is attachable to a frame of an existing electrostatic separator and includes a pair of oppositely spaced end panels and an elongate corona support member disposed inwardly of and supported by the respective end panels. The coro... | 10/04/2005 |
| 6949715 | Method and apparatus for particle size separation An apparatus for separating a stream of particles comprises a charging device for injecting a net charge into a plurality of particles and a collector adjacent the charging device. The collector is grounded and arranged so that the charged particles disperse and col... | 09/27/2005 |
| 6927354 | Tribocharging and electrostatic separation of mixed electrically insulating particles An apparatus for tribocharging particles of electrically insulating materials has a rotatable drum (1), made of a metallic material, for containing the particles. The drum has an inlet (11), for charging material, and an outlet (13), for dischar... | 08/09/2005 |
| 6923848 | Collecting apparatus of floating dusts in atmosphere A collecting device for collecting particles floating in the atmosphere includes a collecting container; a pump for sucking the atmosphere into the collecting container; a discharge electrode disposed in the collecting container for generating single polarity ions t... | 08/02/2005 |
| 6923890 | Chemical processing using non-thermal discharge plasma A method for activating chemical reactions using a non-thermal capillary discharge plasma (NT-CDP) unit or a non-thermal slot discharge plasma (NT-SDP) unit (collectively referred to as “NT-CDP/SDP”). The NT-CDP/SDP unit includes a first electrode disposed betwe... | 08/02/2005 |
| 6921618 | Photoconductive organic pigment, photoconductive organic pigment dispersion liquid, electrophotographic photoreceptor and electrophotographic device using the same The present invention relates to a photoconductive organic pigment comprising granular cores and an organic pigment having photoconductive properties which organic pigment adheres to the surfaces of the granular cores, a photoconductive organic pigment dispersion li... | 07/26/2005 |
| 6918534 | Collection box with sealed and statically charged mail chute A system and method for substantially eliminating the release of pathogen agents circulating in the air within a collection box. The mail deposit openings (12, 14) of a collection box mail chute (16) are adapted with gaskets (18, 20) to form an ... | 07/19/2005 |
