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...Chester Carlson was a patent agent who tired of having to make multiple copies of patent applications using the only duplication method available at the time: carbon paper. In 1959 he came up with a new copying system and took it to IBM for evaluation. The "experts" at IBM determined potential sales to be only 5,000 units because people wouldn't want to use a bulky machine when they had carbon paper. Carlson's invention was the xerography process, the company founded on the system is Xerox.

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Class 204/164 - Electrostatic field or electrical discharge


Subclass of Class 204 - Chemistry: electrical and wave energy
Definition: Chemical processes which have for their purpose the preparation
No. of patents: 771
Last issue date: 03/16/2010


1                      
NumberTitleIssue Date
7678238Method and apparatus for underwater decomposition of organic content of electrically conductive aqueous waste solutions
The object of the present invention is a method and an apparatus for underwater decomposition of organic content of aqueous waste solutions, involving the measurement and, if necessary, adjustment of the pH and electric conductivity of the solution, maintaining opti...
03/16/2010
7476300Process for extracting and recovering metals from aqueous solutions
An apparatus and process for recovering metals from aqueous solutions by passing an aqueous solution, which contains dissolved metals, into a space between two elongated electrodes of a treatment chamber. A very high voltage electric field is created in the treatmen...
01/13/2009
7465377Method for destroying a nuclear graphite by gasification in aqueous medium
A process for the treatment of a nuclear graphite contaminated with radioelements includes subjecting the graphite, immersed in a medium containing water, to high-voltage pulses. The pulses have sufficient energy for electric arcs to be initiated and to break the co...
12/16/2008
7438789Decomposition cell
A decomposition cell having a first metal plate with a first layer of dielectric and a second metal plate with a second layer of dielectric wherein each layer of dielectric is sprayed onto the metal plates in molten form using a thermal plasma spray process. The pla...
10/21/2008
7431897Apparatus replacing atmospheric oxygen with an inert gas from a laminar air boundary layer and application of said apparatus
The invention relates to apparatus replacing atmospheric oxygen with an inert gas such as N2 from the minimum of one laminar air boundary layer of substrates moving in the direction of advance, for instance fast moving lines of material fitted with a firs...
10/07/2008
7429313Method of producing electrostatically charged gelatin
Methods of forming electrostatically charged gelatin are provided. Gelatin is extracted by an acid extraction method (12) thereby producing a gelatin dispersion (14), the pH of which is adjusted to the isoelectric point of the gelatin. The pH of the ge...
09/30/2008
7416646Fly ash treatment by in situ ozone generation employing a venturi
Disclosed is a method of treating, fly ash having an unacceptably high concentration of carbon, with ozone produced in situ by corona discharge. This method will allow high carbon-content fly ash to be used with air entrainment agents as an additive to cement. The c...
08/26/2008
7413635Method for the fabrication of periodically poled Lithium Niobate and Lithium Tantalate nonlinear optical components
A process for reducing the poling field of congruent LiNbO3 and LiTaO3 crystal-based nonlinear optical devices and for the production of domain structures with precise reproducibility of the main parameters by depositing a thin layer of a stoic...
08/19/2008
7407634Plasmatron fuel converter having decoupled air flow control
A novel apparatus and method is disclosed for a plasmatron fuel converter (“plasmatron”) that efficiently uses electrical energy to produce hydrogen rich gas. The plasmatron has multiple decoupled gas flow apertures or channels for performing multiple functions ...
08/05/2008
7384520Method for manufacturing hybrid carbon nanotube
The invention of present application relates to a method for enabling a hybrid carbon nanotube having an arbitrary composition ratio to be readily manufactured, and the hybrid carbon nanotube. A method for manufacturing a hybrid carbon nanotube, which comprises imme...
06/10/2008
7381380Plasma based trace metal removal apparatus
A system and method for the removal of metals such as mercury from a gas stream. The method involves contacting a gas stream containing the target metals with reactive chemical species generated in a plasma device. The metal to be removed is chemically converted int...
06/03/2008
7374655Electrochemical water purifier
An electrolytic water purification system and method use provides a water filtration device with a plurality of electrolytic cells having anodes and cathodes specifically selected to remove contaminants from water. The device is capable of efficiently removing nearl...
05/20/2008
7374688Spark-induced consolidation of sludge
Exposing sludge to underwater, high-intensity sparks, to increase cake solids, provide faster settling, and increase the rate of dewatering. ...
05/20/2008
7368002Ionic air conditioning system
The air conditioning system includes a housing having a vent portion and an ion generating unit positioned in the housing. The ion generating unit includes a first electrode, at least one second electrode, and a voltage generator that provides a constant potential d...
05/06/2008
7368094Plasma-assisted NOreduction
Ozone, preferably produced in an ambient air stream passed through a non-thermal hyperplasma reactor, is added to the hot exhaust gas stream from a lean-burn (oxygen-rich) combustion source. The ozone converts much of the NO in the NOx containing exhaust ...
05/06/2008
7367196Spinning cold plasma apparatus and methods relating thereto
Disclosed herein is an apparatus for generating a spinning cold plasma. A preferred embodiment of the spinning cold plasma apparatus is portable and includes a vortex tube having an inner wall to form a vortex reaction chamber. The vortex tube preferably has a cold ...
05/06/2008
7361255Method and apparatus for application of electrostatic charges to compounds held within containers
A method and apparatus for application of electrostatic charges to compounds to change the physical characteristics of the compounds. The compound is located within a container, that can be sealed or open, in proximity to an electrode so that there is capacitive cou...
04/22/2008
7354354Article comprising a fine-grained metallic material and a polymeric material
Lightweight articles comprising a polymeric material at least partially coated with a fine-grained metallic material are disclosed. The fine-grained metallic material has an average grain size of 2 nm to 5,000 nm, a thickness between 25 micron and 5 cm, and a hardne...
04/08/2008
7351437Pet food compositions comprising electrostatically charged gelatin
Animal feed compositions comprising amounts of protein, carbohydrate, fat and a functional ingredient for preventing hairball formation are provided. The functional ingredient comprises at least one member selected from the group consisting of electrostatically char...
04/01/2008
7348065Slipping property imparting agent for clear coating and clear coating paper having the agent applied thereon
Produce a slipping property imparting agent for clear coat that reduces scum production: wherein, (1) the agent comprises a copolymer whose constituents are unsaturated olefin (constituent (a)) and unsaturated carboxylic acid (carboxylate) (constituent (b)); (2) con...
03/25/2008
7347888Air purifier
An air purifier is disclosed having an electrostatic chamber and a germicidal chamber, wherein the two chambers are distinct and there is no air flow communication between the electrostatic and germicidal chambers. ...
03/25/2008
7347979Gas processing method and gas processing apparatus utilizing oxidation catalyst and low-temperature plasma
A method for treating a gas characterized in that a low temperature plasma is generated in the presence of a metallic oxide oxidation catalyst, and an apparatus for treating a gas characterized by containing a low temperature plasma-generating unit carrying a metall...
03/25/2008
7341217Electrostatic tension control of webs
An electrostatic charging system holds a film web to a roll without significant slippage, thus allowing for proper tension control of the web even with extreme differences in tension upstream and downstream of the motorized roll. The system can electrostatically tra...
03/11/2008
7338808Method and apparatus for determining zeta potential using alternating current electric field and T channel
Provided is a method for determining a zeta potential generated between a solid wall and a solution. The method includes (a) injecting an electrolyte solution into a first inlet of a T channel, which is provided with first and second inlet electrodes and a grounded ...
03/04/2008
7335611Copper conductor annealing process employing high speed optical annealing with a low temperature-deposited optical absorber layer
A method of forming a conductor in a thin film structure on a semiconductor substrate includes forming high aspect ratio openings in a base layer having vertical side walls, depositing a dielectric barrier layer comprising a dielectric compound of a barrier metal on...
02/26/2008
7335395Methods of using pre-formed nanotubes to make carbon nanotube films, layers, fabrics, ribbons, elements and articles
Methods of Using Preformed Nanotubes to Make Carbon Nanotube Films, Layers, Fabrics, Ribbons, Elements and Articles are disclosed. To make various articles, certain embodiments provide a substrate. Preformed nanotubes are applied to a surface of the substrate to cre...
02/26/2008
7335281Method of manufacturing liquid medium containing composite ultrafine particles
A method of manufacturing a liquid medium containing composite ultrafine particles comprises the steps of preparing a dispersion medium that is a liquid medium in which ultrafine particles of different materials from each other are dispersed, introducing the dispers...
02/26/2008
7332313Electrical wounding assay for cells in vitro
A method and system for electrically wounding and/or monitoring cell activity in vitro. The invention comprises methods and systems for wounding and/or monitoring cells that place a cell culture on a well that has an exposed electrode. The cell culture can then be w...
02/19/2008
7330755Apparatus for preparing a finger nail or a toe nail for a coating
An apparatus for preparing a finger nail or a toe nail for a coating in that a gas discharge is ignited above the nail at atmospheric pressure comprises an electrode to be arranged above the nail, and a high voltage generator generating a high voltage to be applied ...
02/12/2008
7329290Fuel reforming apparatus for producing a carbon-monoxide free reformed fuel gas comprising hydrogen
This invention relates to a fuel reforming apparatus for producing a carbon-monoxide free reformed fuel gas comprising hydrogen. More particularly, this invention relates to nonthermal plasma reactors for removing carbon monoxide from a reformed fuel gas produced fr...
02/12/2008
7329902IR-light emitters based on SWNT's (single walled carbon nanotubes), semiconducting SWNTs-light emitting diodes and lasers
The present invention relates to a new light emitters that exploit the use of semiconducting single walled carbon nanotubes (SWNTs). Experimental evidences are given on how it is possible, within the standard silicon technology, to devise light emitting diodes (LEDs...
02/12/2008
7326264Plasma particulate filter
A method for reducing the particulate emissions containing carbon of diesel motors uses surface discharges to regenerate a filter. An appropriate wall flow filter is configured from alternately closed longitudinal channels. The electrodes are embedded in the filter ...
02/05/2008
7323401Semiconductor substrate process using a low temperature deposited carbon-containing hard mask
A method of processing a thin film structure on a semiconductor substrate using an optically writable mask includes placing the substrate in a reactor chamber, the substrate having on its surface a target layer to be etched in accordance with a predetermined pattern...
01/29/2008
7320734Plasma immersion ion implantation system including a plasma source having low dissociation and low minimum plasma voltage
A system for processing a workpiece includes a plasma immersion ion implantation reactor with an enclosure having a side wall and a ceiling and defining a chamber, and a workpiece support pedestal within the chamber having a workpiece support surface facing the ceil...
01/22/2008
7316106Method for processing combustion exhaust gas containing soot particles and NOx
The invention relates to a system and a method for processing exhaust gas of an internal combustion engine such as a diesel engine. The disclosed system and method can be particularly suitable to the diesel engine that usually operates in a lean burn condition witho...
01/08/2008
7311887Hybrid wet and dry electrostatic precipitator ammonia scrubber
A process reduces SOx emissions in a flue gas stream by adding a wet collector plate section to an existing electrostatic precipitator (ESP) or by converting the last field of an existing ESP to wet operation. To achieve the conversion, the last field or ...
12/25/2007
7312087Devices and methods for biochip multiplexing
The invention is directed to devices and methods that allow for simultaneous multiple biochip analysis. The method of analyzing the plurality of biochips includes inserting a first biochp into a first station of an analysis device, inserting a second biochip into a ...
12/25/2007
7312148Copper barrier reflow process employing high speed optical annealing
A method of forming a barrier layer for a thin film structure on a semiconductor substrate includes forming high aspect ratio openings in a base layer having vertical side walls, depositing a dielectric barrier layer comprising a dielectric compound of a barrier met...
12/25/2007
7312162Low temperature plasma deposition process for carbon layer deposition
A method of depositing a carbon layer on a workpiece includes placing the workpiece in a reactor chamber, introducing a carbon-containing process gas into the chamber, generating a reentrant toroidal RF plasma current in a reentrant path that includes a process zone...
12/25/2007
7311762Air conditioner device with a removable driver electrode
An air-conditioning device including a housing having at least one grill, an electrode assembly and a driver electrode. Both the electrode assembly and the driver electrode are supported by the housing. The electrode assembly includes a portion that is removable fro...
12/25/2007
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