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| Number | Title | Issue Date |
| 8105478 | Method for measuring the concentration or change in concentration of a redox-active substance and corresponding device In order to follow the change in concentration of a redox-active substance, potential suitable for a reducing process or oxidation process are applied to the working electrode of a measuring device. The potential of the working electrode is pulsed and measuring phas... | 01/31/2012 |
| 8062502 | Arrangement and method for detecting small substance concentrations In order to avoid problems caused by baseline drift, it is expedient in a method of an embodiment of the present application not to measure a signal rise in a detection space, but to allow a certain time period to elapse in order to enrich a detectable product (enri... | 11/22/2011 |
| 7312087 | Devices 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 |
| 7291253 | Detection of an unstable additive breakdown product in a plating bath The 3-mercaptopropylsulfonic acid (MPSA) breakdown product of the bis(sodiumsulfopropyl)disulfide (SPS) additive used in acid copper plating baths accelerates copper electrodeposition and can be detected by cyclic voltammetric stripping (CVS) analysis. In the presen... | 11/06/2007 |
| 7279082 | Method of reacting carboxylic acids A carboxylic acid molecule (R COOH) is subjected to an electric field in a micro-reactor. The molecule decarboxyles to form a radical (R•). Two radicals (R•) can dimerise to form the product (R—R). It is believed that the reaction occurs ... | 10/09/2007 |
| 7270733 | Method and apparatus for real time monitoring of industrial electrolytes The present invention relates generally to any electrolyte and methods for monitoring the constituents contained therein. More specifically, the present invention relates to plating baths and methods for monitoring the constituents contained therein based on chemome... | 09/18/2007 |
| 7267939 | Detection of analytes using reorganization energy The invention relates to novel methods and compositions for the detection of analytes using the nuclear reorganization energy, λ, of an electron transfer process. ... | 09/11/2007 |
| 7205099 | Methods for studying ion channels incorporated onto a solid-supported membrane Methods for studying ion channels comprise incorporating an ion channel onto the surface of a solid-supported membrane; applying a potential to the solid-supported membrane; and measuring an electrical signal of the ion channel. Methods for identifying or screening ... | 04/17/2007 |
| 7022217 | Electrochemical method for measuring chemical reaction rates The present invention relates to the measurement of the progress of a chemical reaction that generates an electroactive reaction product that is subsequently detected at an electrode amperometrically or coulometrically. The method is useful in applications where it ... | 04/04/2006 |
| 7018523 | Detection of analytes using reorganization energy The invention relates to novel methods and compositions for the detection of analytes using the nuclear reorganization energy, λ, of an electron transfer process. ... | 03/28/2006 |
| 6989090 | Method to monitor chemical reactions in a micro-reactor by measuring an electrical current A reaction is performed in a micro-reactor (10), voltages being applied by a power supply (12), under the control of a processor (14), so as to cause the reagents to move and react in the channels (24′,30′,32′,34′,36′) of the mi... | 01/24/2006 |
| 6949179 | Methods for forming magnetically modified electrodes and articles produced thereby The present invention is directed to methods for making magnetically modified electrodes and electrodes made according to the method. Such electrode are useful as electrodes in batteries, such as Ni-MH batteries, Ni—Cd batteries, Ni—Zn batteries and Ni—Fe batt... | 09/27/2005 |
| 6942782 | Method and apparatus for measuring deposit forming capacity of fluids using an electrochemically controlled pH change in the fluid proximate to a piezoelectric microbalance A method and apparatus for measuring the deposit forming propensity of a continuously flowing fluid having a bulk pH of about 1 to about 12 comprising measuring the rate at which deposit forms on a quartz crystal microbalance having a top side comprising a working e... | 09/13/2005 |
| 6906535 | Method for characterizing water-in-oil emulsions using electrical wave forms A method is provided for characterizing emulsion stability to evaluate suitability of the emulsion for use as a drilling fluid in drilling subterranean boreholes. The method provides a supplement or alternative to the standard method of determining Electrical Stabil... | 06/14/2005 |
| 6884333 | Electrochemical system for analyzing performance and properties of electrolytic solutions The invention relates to the analysis of the performance and properties of electrochemical processes, and specifically, to electrolytic solutions and electrode processes. The invention discloses a device and a method for obtaining qualitative and quantitative inform... | 04/26/2005 |
| 6709561 | Measurement of the concentration of a reducing agent in an electroless plating bath The concentration of a reducing agent in an electroless bath for plating a first metal is determined from the effect of the reducing agent on the electrodeposition rate of a second metal. For electroless cobalt and nickel baths, a sample of the electroless plating b... | 03/23/2004 |
| 6551493 | Ultraviolet light measuring chip and ultraviolet light sensor using the same An ultraviolet light measuring chip and a sensor are provided simple in structure, easy to handle and of high precise measurement. The chip comprises a first reaction chamber for detection of total received light and a second reaction chamber for detectio... | 04/22/2003 |
| 6444115 | Electrochemical method for measuring chemical reaction rates The present invention relates to the measurement of the progress of a chemical reaction that generates an electroactive reaction product that is subsequently detected at an electrode amperometrically or coulometrically. The method is useful in application... | 09/03/2002 |
| 6375829 | Method and apparatus for measuring scaling capacity of calcium oxalate solutions using an electrochemically controlled pH change in the solution proximate to a piezoelectric microbalance This invention is directed to a method and apparatus for measuring the rate of calcium oxalate scale formation in a continuously flowing solution having a pH of from about 2 to about 3 comprising measuring the rate of deposition of calcium oxalate scale f... | 04/23/2002 |
| 6365035 | Method for measuring properties of the stack and the corrosion of materials in a soda recovery unit The invention relates to a method for measuring the properties of a stack (15) that viscous molten salt forms on the bottom of a soda recovery unit (14) while black liquor is burned therein, and for measuring the corrosion of the materials of construction... | 04/02/2002 |
| 6290838 | Apparatus and method for characterizing liquids An apparatus and a method of characterising liquids employ liquid sensors of different types of technology, in order to generate characterisation data from the whole of the output signals originating from these sensors when they are soaked in a sample of ... | 09/18/2001 |
| 6248229 | Detection of analytes using reorganization energy The invention relates to novel methods and compositions for the detection of analytes using the nuclear reorganization energy, λ, of an electron transfer process.... | 06/19/2001 |
| 6217745 | Method for monitoring agents in hydrocarbon fluids A method and apparatus uses a flow injection technique for rapidly and accurately determining the level of one or more additives such as antioxidants and/or antiwear agents in a hydrocarbon fluid such as an engine oil. The hydrocarbon fluid is injected in... | 04/17/2001 |
| 6013170 | Detection of analytes using reorganization energy The invention relates to novel methods and compositions for the detection of analytes using the nuclear reorganization energy, λ, of an electron transfer process.... | 01/11/2000 |
| 6013459 | Detection of analytes using reorganization energy The invention relates to novel methods and compositions for the detection of analytes using the nuclear reorganization energy, λ, of an electron transfer process.... | 01/11/2000 |
| 5849174 | Electrodes and their use in analysis A method for indicating the concentration of a substance in solution includes passing an alternating voltage between a first electrode structure having coated thereon a polymer and a second separate counter electrode in the solution. The polymer is in one... | 12/15/1998 |
| 5833830 | Redox control in the electrodeposition of metals In one embodiment, a method of electrowinning a metal from an electrolyte comprises the steps of measuring the redox potential of the electrolyte to obtain a measured value, comparing the measured value with a predetermined optimum value and adding a redo... | 11/10/1998 |
| 5676820 | Remote electrochemical sensor An electrochemical sensor for remote detection, particularly useful for metal contaminants and organic or other compounds. The sensor circumvents technical difficulties that previously prevented in-situ remote operations. The microelectrode, connected to ... | 10/14/1997 |
| 5573868 | Material for generating electric energy The present invention relates to a process for generating an energy such as electricity, a device therefor and a compound having a N--F bond and generating an energy such as electricity and a battery using the compound, and can provide a process for gener... | 11/12/1996 |
| 5451289 | Fixture for in-situ noncontact monitoring of wet chemical etching with passive wafer restraint A fixture for in-situ chemical etch monitoring of an etching process during etching of at least one wafer contained in a wafer carrier is disclosed. The fixture comprises a set of primary guide members for engaging and guiding a front portion of the wafer... | 09/19/1995 |
| 5397896 | Multiple source and detection frequencies in detecting threshold phenomena associated with and/or atomic or molecular spectra Multiple frequency sources are used to apply a time varying signal to a scanning tunneling microscope and a current or voltage passing between the electrodes of the microscope is measured by a microwave spectrum/network analyzer which detects simultaneous... | 03/14/1995 |
| 5364510 | Scheme for bath chemistry measurement and control for improved semiconductor wet processing A feedback control system for providing automated and in-situ control of multi-component chemical concentrations in a liquid bath used for semiconductor processing. A sample from the liquid bath is injected into a carrier stream and routed to a conductivi... | 11/15/1994 |
| 5338390 | Contactless real-time in-situ monitoring of a chemical etching process A contactless method and apparatus for real-time in-situ monitoring of a chemical etching process for the etching of at least one wafer in a wet chemical etchant bath are disclosed. The method comprises the steps of providing at least two conductive elect... | 08/16/1994 |
| 5286358 | Method of analyzing the complexing power of a pickling liquor A method is provided for accurately determining the complexing capacity (or free HF concentration) of a pickling liquor. A sample of pickling liquor is obtained and an excess of ferric ion is added thereto to complex with all of the free HF in the sample.... | 02/15/1994 |
| 5209832 | Process for the preparation of metal complex dyes The invention relates to a process for the preparation of a metal complex dye under production conditions, which comprises reacting at least one dye with a metal donor, adding said metal donor or said dye discontinuously before the end point of the metall... | 05/11/1993 |
| 5180968 | Method and apparatus for compensation of double layer charging current in electrochemical cells A method and apparatus for compensating for charging current at a working electrode of an electrochemical cell. And a method for measuring faradaic current at the working electrode. Includes measuring the current at the working electrode while a time-vary... | 01/19/1993 |
| 4989157 | Automated chemical milling controller To maintain the actual milling rate of a chemical milling solution within a predetermined range, an automated chemical milling controller periodically measures the actual milling rate within the milling tank, senses the actual temperature of the milling s... | 01/29/1991 |
| 4950359 | Process for removing a coating containing niobium from a substrate Cleaning baths for the removal of a coating containing niobium on a substrate, consisting of an aqueous solution of hydrogen peroxide and of alkali metal hydroxide. The coating is treated with the bath, to remove it from the substrate by dissolving.... | 08/21/1990 |
| 4869787 | Electrochemical method for determining end points of organic or inorganic reactions Herein disclosed are an electrochemical method for determining the end point of oxidation-reduction reactions, certain exchange reactions or precipitation reactions of organic or inorganic compounds and a dipole gold electrode used therein. The method com... | 09/26/1989 |
| 4794089 | Method for electronic detection of a binding reaction A method is disclosed for detecting the occurrence of a binding or complex-forming reaction between specific substances by utilizing the binding reaction to complete an electrical circuit, and then measuring a change in the electrical state of this circui... | 12/27/1988 |
