Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7384529 | Method for electrochemical decontamination of radioactive metal A decontamination method for stripping radionuclides from the surface of stainless steel or aluminum material comprising the steps of contacting the metal with a moderately acidic carbonate/bicarbonate electrolyte solution containing sodium or potassium ions and the... | 06/10/2008 |
| 7157059 | Reduction device for nitrate determination A nitrate reduction device has a cadmium structure forming a plurality of longitudinal channels within a flow chamber, which may be formed by a plurality of wires. The device is used to reduce nitrate to a final nitrite product for analysis. ... | 01/02/2007 |
| 7144493 | Process for the electrochemical decomposition of powders and electrolysis cells suitable therefor Process for the electrochemical decomposition of precursors in powder form by introducing a powder batch between two electrodes of an electrolysis cell, electrodes being designed to be liquid-permeable, and the electrolyte flowing through the powder batch perpendicu... | 12/05/2006 |
| 7136173 | Method and apparatus for end-point detection An apparatus for detecting the end-point of an electropolishing process of a metal layer formed on a wafer (1004) includes an end-point detector. The end-point detector is disposed adjacent the nozzle (1008) used to electropolish the wafer. In one embo... | 11/14/2006 |
| 7087710 | Polymeric surfactants derived from cyclic monomers having pendant fluorinated carbon groups A fluorine containing polymer which acts as a wetting, flow or leveling agent, and has at least one polar group. The polymer has at least one pendant or ether side chain containing from about 1 to about 20 carbon atoms with at least 25% of the hydrogen atoms being r... | 08/08/2006 |
| 7070685 | Method and device for decontaminating water which contains metal and/or is radioactively contaminated The invention relates to an efficient process and device for the decontamination of waters polluted with heavy metals, semimetals and/or radionuclides by cation exchange and electrochemical deposition of the anions. ... | 07/04/2006 |
| 7037853 | Wafer cleaning apparatus An object of the present invention is to provide a wafer cleaning apparatus for cleaning wafers that have received various processing such as copper plating and chemical mechanical polishing. An apparatus for cleaning front and back surfaces of a wafer with solution... | 05/02/2006 |
| 7029567 | Electrochemical edge and bevel cleaning process and system An edge cleaning system and method is disclosed in which a directed stream of a mild etching solution is supplied to an edge area of a rotating workpiece, including the front surface edge and bevel, while a potential difference between the workpiece and the directed... | 04/18/2006 |
| 6979391 | Method and device for the electrolytic treatment of electrically conducting structures which are insulated from each other and positioned on the surface of electrically insulating film materials and use of the method For electrolytic treatment of electrically mutually insulated, electrically conductive structures 4 on surfaces of electrically insulating foil material (Fo), is unloaded from a store 15′, 15″, transported on a conveying line through a treatment un... | 12/27/2005 |
| 6942810 | Method for treating metal-containing solutions A method for treating an electroless plating liquid or other metal-containing solution that also contains reducing agents. The method includes providing a reaction vessel containing an anode, a cathode, and a hydrogen ion-permeable membrane separating the anode and ... | 09/13/2005 |
| 6902679 | Treatment of water containing organic wastes with aromatic amine nitrate salts A process for wet oxidation of a waste stream containing organic carbon and organic or inorganic nitrogen-containing pollutants which comprises initially removing organic or inorganic nitrogen-containing pollutants using a nitrate salt of an aliphatic or aromatic am... | 06/07/2005 |
| 6902677 | Method of removing metal ion and apparatus for treating substrate A method of removing a metal ion from a treating liquid for use in treating a substrate comprises the steps of: applying a first voltage via an electrode to the treating liquid that flows in a supply piping so that deposition can occur; and applying a second voltage... | 06/07/2005 |
| 6887368 | Method and device for electroextraction of heavy metals from technological solutions and wastewater The basic principles of the method for heavy metals electroextraction from technological solutions and wastewater includes pretreating to remove Chromium-6 and high concentrations of heavy metals and periodically treating in a six-electrode bipolar cylindrical elect... | 05/03/2005 |
| 6821447 | Friction member and a method for its surface treatment A method of surface treatment of friction members includes providing a friction member made of PMMC material. A transfer layer is formed on the active surface of the friction member of removing the top layer of the matrix material to expose a surface with the embedd... | 11/23/2004 |
| 6733679 | Method of treating an electroless plating waste A method of treating an electroless plating waste is provided. The waste is contained and an ability of a reducing agent to reduce a metal of the waste is decreased, for example by adding a stabilizing chemical or by exposing the waste to an anode to which a positiv... | 05/11/2004 |
| 6706168 | Wastewater treatment method and apparatus Wastewater treatment operations, i.e. the coagulation, decomposition, sterilization and separation of impurities such as the sludge, organisms, etc. in a liquid to be treated are carried out by applying an AC voltage of a specific frequency between first and second ... | 03/16/2004 |
| 6605252 | Vibrationally stirring apparatus for sterilization, sterilizing apparatus and sterilizing method A method of sterilizing liquid is performed by providing a vibrationally stirring apparatus having a vibration generating unit containing a vibration motor (14), a vibrating rod (7) operationally connected to the vibration generating unit, vibration vanes... | 08/12/2003 |
| 6555010 | Solution mining process for removing metals from aqueous solution A process is disclosed for obtaining colloid-forming metal particles from an aqueous mine waste solution containing that metal in ionic form. In accordance with this process, an aqueous mine waste solution containing that metal in ionic form is provided h... | 04/29/2003 |
| 6547949 | Method for preventing stray currents in peripheral system parts during an electrolysis process for obtaining metals The electrolyte is supplied from a reservoir through at least one supply line to an electrolysis area including anodes and cathodes and at least one electric d.c. voltage source, and used electrolyte is at least partly recirculated from the electrolysis a... | 04/15/2003 |
| 6532647 | Manufacturing method of composite type thin-film magnetic head A manufacturing method of a composite type thin-film magnetic head with a reading head element and an inductive writing head element, includes a step of forming the reading head element and its lead conductor layers on a first insulation layer, a step of ... | 03/18/2003 |
| 6500328 | Method for pickling steel products Method for pickling products made of steel, characterized in that within the pickling bath Fe3+ is present, directly added in a controlled concentration, or produced in the pickling bath itself by adding an oxidizing agent such as hydrogen pero... | 12/31/2002 |
| 6458277 | Method and apparatus for cleaning products containing heavy metals The invention uses the electro-kinetic principle for a method for the cleaning of materials contaminated with heavy metals, whereby use is made of an apparatus comprising two charge-selective ion-exchange membranes with different charges combined with an ... | 10/01/2002 |
| 6428683 | Feedback controlled airfoil stripping system with integrated water management and acid recycling system The present invention relates to a feedback controlled stripping system with integrated water management and acid recycling system. The system comprises a stripping tank containing an electrolyte bath stripping solution for removing a coating from at leas... | 08/06/2002 |
| 6387243 | Separation of metal ions absorbed on a resin and installation for recycling photographic effluents including an exchanger and an electrolytic vessel A method for separating metal ions absorbed on a resin includes: suspending or percolating a cationic exchange resin charged with a polar solvent containing an eluting agent or a mixture of eluting agents containing at least an organic or mineral ligand c... | 05/14/2002 |
| 6372111 | Method and apparatus for reclaiming a metal from a CMP process for use in an electroplating process A method and apparatus is disclosed for reclaiming a metal from the effluent of a chemical mechanical planarization (CMP) process and using the reclaimed metal in an electroplating process. The steps of the method include using a chemical solution in a CM... | 04/16/2002 |
| 6319391 | Removal of metal from graphite A method of treating scrap graphite having a metal contaminant adhered thereto. The metal is separated from the graphite by placing the scrap graphite in an aqueous oxidizing electrolyte and passing there through an electric current. The electric current ... | 11/20/2001 |
| 6298996 | Three dimensional electrode for the electrolytic removal of contaminants from aqueous waste streams Efficient and cost-effective electrochemical devices and processes for the remediation of aqueous waste streams. The invention provides electrolytic cells having a high surface area spouted electrode for removal of heavy metals and oxidation of organics f... | 10/09/2001 |
| 6277265 | Apparatus and method for electrocoriolysis, the separation of ionic substances from liquids in the electrodynamic mode An apparatus and method for electrocoriolysis, the separation of ionic substances from liquids in the electrodynamic mode. The method maximizes centrifugal forces on a fluid contained in a chamber having oppositely polarized electrodes. A feed fluid is fe... | 08/21/2001 |
| 6267862 | Apparatus and method for plating wafers, substrates and other articles A plating apparatus and methodology is disclosed that is particularly useful in improving the plating rate, improving the plating of via holes, improving the uniformity of the plating deposition across the surface of the wafer, and minimizing damage to th... | 07/31/2001 |
| 6258251 | Electrolytic cell An electrolytic cell for the recovery of silver from a photographic fixer solution is of generally cylindrical configuration. The cell has a screw-on lid that carries the disposable cathode of the cell. Inlet and outlet for the solution are at the bottom ... | 07/10/2001 |
| 6251258 | Method and apparatus for removing toxic substances from waste marine products In an electrolytic bath, an extraction part extracts heavy metal in the internal organs of scallops into an acid solution. A direct current voltage is applied between electrodes, which are provided in the acid solution, to deposit the heavy metal in the a... | 06/26/2001 |
| 6241872 | Process and equipment for electrochemical dual phase concentration, collection and removal of ions A method and apparatus concentrates, collects and removes heavy metals, other cations, and anions from media permitting generation of electrical fields. The heavy metals and other cations are electrochemically concentrated and precipitated for rapid remov... | 06/05/2001 |
| 6228247 | Electric field method and apparatus for decontaminating soil Disclosed is an electrokinetic soil decontamination system that uses special electrode wall configurations, treatment wall configurations, and a combination electrode/treatment wall. A special emplacement method for all the flowable wall materials is used... | 05/08/2001 |
| 6210078 | Methods for the in situ removal of a contaminant from soil The invention relates to a method for removing a contaminant in situ from soil containing the contaminant, by contacting the soil containing the contaminant with a reagent in situ to remove the contaminant from the soil and form a mixture; removing the mi... | 04/03/2001 |
| 6200457 | Electroactivated material, its preparation and its use in producing cathode components The present invention relates to an electroactivated material comprising fibers and a binder and additionally having an electrocatalytic agent in the form of particles comprising a precious metal oxide or in the form of particles comprising a support and ... | 03/13/2001 |
| 6110379 | Method for treating water containing sulfate An apparatus and method for removing contaminating metal ions and sulfate ions from acidic aqueous solution such as waste mine water which features passing the solution between pairs of electrodes, each pair of electrodes impressed with a voltage selected... | 08/29/2000 |
| 6074537 | Equipment for electochemical collection removal of ions A method and apparatus concentrates, collects and removes heavy metals, other cations, and anions from media permitting generation of electrical fields. The heavy metals and other cations are electrochemically concentrated and precipitated for rapid remov... | 06/13/2000 |
| 6071399 | Electrolytic cell An electrolytic cell comprises a housing (12), means (21) defining a liquid level (25) in said housing (12), a first contact surface (32) positioned above said liquid level (25) for making contact with a removable electrode (20) when positioned in said ho... | 06/06/2000 |
| 6056869 | Wafer edge deplater for chemical mechanical polishing of substrates A device for electrochemically deplating metal from side edges and a backside of a semiconductor wafer or substrate. The device includes a shaped cathode having a shape substantially corresponding to a shape of at least a portion of the semiconductor wafe... | 05/02/2000 |
| 6033552 | Method for purification of natrium sulphate Purification of Natrium Sulfat, separation of chrome by the electrocoagulation of Chrome using a bioelectrode cell (AC). The bioelectrode cell is a series of electrodes (Fe--Cr--Fe--Cr), and AC is applied to the first and the last electrodes.... | 03/07/2000 |
