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| Number | Title | Issue Date |
| 7150997 | Multiplexed active biologic array A method of addressing and driving an electrode array includes the step of addressing one or more electrodes within the array using a plurality of row and column lines. In one aspect of the method, a value corresponding to a voltage is stored in a local memory assoc... | 12/19/2006 |
| 7101717 | Addressable biologic electrode array An addressable biologic electrode array includes an array of electrodes disposed on a support, the array of electrodes being selectively addressed and driven using a memory associated with each electrode of the array, the driven electrodes being driven at one of a p... | 09/05/2006 |
| 7045097 | Biologic electrode array with integrated optical detector A biologic electrode array is formed on a semiconductor substrate. A matrix of electrode sites is disposed on the semiconductor substrate. A matrix of optical detectors is disposed beneath the electrode sites in the semiconductor substrate, wherein each electrode si... | 05/16/2006 |
| 7006929 | Signal detecting sensor provided with multi-electrode A sensor capable of simply and quickly measuring the electrical activities of a number of cells simultaneously and a device comprising the sensor and capable of detecting the signal transmission between subject cells are provided. The sensor comprises a plurality of... | 02/28/2006 |
| 6867048 | Multiplexed active biologic array A method of addressing and driving an electrode array includes the step of addressing one or more electrodes within the array using a plurality of row and column lines. In one aspect of the method, a value corresponding to a voltage is stored in a local memory assoc... | 03/15/2005 |
| 6682936 | Addressable biologic electrode array A biologic electrode array assembly is formed on an integrated circuit chip that includes an array of electrodes. At least one metal oxide semiconductor (MOS) switch is coupled to at least one of the electrodes within the array. A voltage line is provided... | 01/27/2004 |
| 6527930 | Microfabricated array of iridium microdisks An ultramicroelectrode is disclosed which includes a) a silicon substrate; b) a silicon oxide insulating layer; c) a titanium adhesion layer; d) an iridium layer; e) a gold bond pad layer; f) a titanium adhesion layer; and g) a silicon dioxide insulating ... | 03/04/2003 |
| 6514396 | Dropping mercury electrode with mercury purification and recycling by means of contact with oxygenated water An electroanalytical apparatus defining a Static Mercury Drop Electrode cell which includes a capillary tube at the end of which is formed mercury drops to constitute the working electrode including a container for continuously receiving and collecting me... | 02/04/2003 |
| 6258606 | Multiplexed active biologic array An improved biologic electrode array and methods for manufacturing and using the same. In one aspect, a matrix of electrodes each coupled to a respective sample-and-hold circuit is provided. The electrodes and sample-and-hold circuits are integral and for... | 07/10/2001 |
| 6146514 | Apparatus and method for measuring acidity An acidity measuring apparatus includes a measuring container for accommodating an electrolyte solution including one of a 1,2-benzoquinone derivative and a 1,4-benzoquinone derivative, an organic solvent, an electrolyte and an acid-containing subject for... | 11/14/2000 |
| 6117304 | Electroanalytical voltammetric cell An electroanalytical voltammetric cell containing: (a) a cell body housing a counter electrode and a working electrode; (b) means for causing a sample solution to flow through the cell and to fill a space between the counter-electrode and the working electrode; and... | 09/12/2000 |
| 6110354 | Microband electrode arrays The present invention provides microband electrode array sensors for detecting the presence and measuring the concentration of analytes in a sample. The microband electrodes of the invention have both a width and a thickness of microscopic dimensions. Pre... | 08/29/2000 |
| 6022470 | Electroanalytical, dropping mercury electrode cell The electroanalytical, voltammetric cell includes a cell body housing, in addition to a reference electrode, a working electrode and, in its lowermost portion, a counter-electrode. An arrangement for deoxygenating the sample solution includes feeding the ... | 02/08/2000 |
| 6019880 | HgO-modified electrode for anodic stripping analysis Two types of HgO-modified electrodes are disclosed. The HgO-modified electrode according to the present invention comprises, HgO particles as precursor of mercury, which can be exposed on the surface of the said electrode and then can be reduced electroch... | 02/01/2000 |
| 5985117 | Ion-selective membrane sensors with mercuracarborand ionophore Ion-selective membranes are disclosed which are suitable for use in ion-selective sensors. The membranes include a mercuracarborand ionophore. Exemplary ion-selective membranes include Mercuracarborand-3 as the ionophore which is incorporated within a pol... | 11/16/1999 |
| 5965452 | Multiplexed active biologic array An improved biologic electrode array and methods for manufacturing and using the same. In one aspect, a matrix of electrodes each coupled to a respective sample-and-hold circuit is provided. The electrodes and sample-and-hold circuits are integral and for... | 10/12/1999 |
| 5865972 | Integrated electrochemical microsensors and microsystems for direct reliable chemical analysis of compounds in complex aqueous solutions A microsensor for electrochemical measurements allowing the determination of concentration or concentration profile of at least one chemical compound with small size or molecular weight, under organic, inorganic, neutral or ionic form in an aqueous enviro... | 02/02/1999 |
| 5863972 | Randomly segmented thermoplastic polyurethanes as matrix for electrochemical analysis of Ca++ ions Composition, comprising in homogeneous distribution A) at least one salt containing a lipophilic anion, B) a plasticiser-free thermoplastic randomly segmented polyurethane which is soluble in organic solvents, a polyurea or a polyurethane urea, which comp... | 01/26/1999 |
| 5837446 | Process for the manufacture of wholly microfabricated biosensors An efficient method for the microfabrication of electronic devices which have been adapted for the analyses of biologically significant analyte species is described. The techniques of the present invention allow for close control over he dimensional featu... | 11/17/1998 |
| 5830343 | Electrochemical analysis process A process is provided for the electrochemical analysis of compounds of solutions, such as can, e.g., be used in chemical analysis or for control measurements in industrial and environmental sectors. Identification or detection of individual substances tak... | 11/03/1998 |
| 5739039 | Microelectrodes and amperometric assays A photo-ablation technique is used to create apertures (4) in a layer (2) of electrically insulating material and allow electrically conducting material (3) exposed through the apertures to create a microelectrode. The microelectrode can be used for assay... | 04/14/1998 |
| 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 |
| 5672257 | Electrochemical metal analysis Electrochemical heavy metal analysis includes a printed electrode having a layer of a mercury compound or salt supported thereon. The compound or salt is reduced to metallic mercury in use of the electrode. The mercury layer may comprise a layer of hydrox... | 09/30/1997 |
| 5635043 | Device comprising microcell for batch injection stripping voltammetric analysis of metal traces A device for batch injection stripping voltammetric analysis of metal traces, of very high sensitivity. This sensitivity extends down to about 0.03 to 0.3 ppb for certain metals. The microanalysis can be carried out at a high rate and in addition to the h... | 06/03/1997 |
| 5635054 | Microelectrodes and amperometric assays A photo-ablation technique is used to create apertures (4) in a layer (2) of electrically insulating material and allow electrically conducting material (3) exposed through the apertures to create a microelectrode. The microelectrode can be used for assay... | 06/03/1997 |
| 5632881 | Measuring magnesium concentrations in molten metal alloys A simple robust sensor probe for determining the magnesium concentration in molten metal alloys in real-time. The probe provides needed process control information in molten metal technologies and has particular application to processes for removing magne... | 05/27/1997 |
| 5607566 | Batch deposition of polymeric ion sensor membranes Screen printing technology is employed in the batch fabrication of the contacts and polymeric membranes of solid-state ion-selective sensors. The process achieves high yield with very reproducible results. Moreover, membrane thickness can easily be predet... | 03/04/1997 |
| 5597464 | Flow-through cell with a hanging mercury drop electrode A flow-through cell has a working electrode, an auxiliary electrode, a reference electrode, and a channel. The working electrode is a mercury drop electrode. The channel has a cross-sectional area of less than 1 mm2 in the region of the working... | 01/28/1997 |
| 5578178 | Mercury drop electrode system A mercury drop arrangement tests electrochemically a sample solution, in a horizontal or vertical orientation, employing mercury which is delivered from a mercury reservoir to the test solution via a valve and mercury capillary tube. The mercury is valved... | 11/26/1996 |
| 5419826 | Ion-selective reference probe An ion-selective reference probe which is adapted for use with potentiomec measurement systems is disclosed. The reference probe is non-chloride based and employs a specially adapted electrolyte which is reversible (i.e. with regard to ionic activity). M... | 05/30/1995 |
| 5393400 | Component sensor for molten metals A metal melt is used as a measuring electrode while a pure form of a particular metal component to be measured or an alloy containing it is used as a standard electrode. The active substance to come in contact with the standard electrode includes at least... | 02/28/1995 |
| 5378343 | Electrode assembly including iridium based mercury ultramicroelectrode array An electrode assembly for use in quantifying the levels of various metals in an aqueous solution. In one embodiment, the electrode assembly comprises a substrate, the substrate being a silicon chip upon which a layer of silicon dioxide has been grown. A p... | 01/03/1995 |
| 5326451 | Liquid electrode A dropping electrolyte electrode for use in electrochemical analysis of non-polar sample solutions, such as benzene or cyclohexane. The liquid electrode, preferably an aqueous salt solution immiscible in the sample solution, is introduced into the solutio... | 07/05/1994 |
| 5294324 | Method of preparation miniaturized sensors on basis of fluids and arrangement of the measuring system A miniaturized sensor element comprises a capillary having first and second ends with a channel therebetween. One of the ends is closed while the other is open. Near the closed end, the capillary material which softens when heated, is heated and gas is su... | 03/15/1994 |
| 5292423 | Method and apparatus for trace metal testing Disclosed are a method and apparatus for trace metal testing using mercury-coated screen printed electrodes. Both voltammetric and potentiometric stripping analysis are used. Sample solutions were tested employing both stirring and non-stirring, as well a... | 03/08/1994 |
| 5282949 | Glass pH electrodes A glass pH electrode which comprises a silver-silver bromide inner electrode and an electrode solution for the inner electrode which is a zwitterionic buffer solution.... | 02/01/1994 |
| 5277781 | Zirconia oxygen sensor A zirconia oxygen sensor for measuring oxygen potential in the molten bath of a metal or alloy having a melting point of 350-550° C., which comprises a reference electrode which is of a substance having a melting point of the same level as or lower than ... | 01/11/1994 |
| 5196096 | Method for analyzing the addition agents in solutions for electroplating of PbSn alloys A method for measuring concentrations of addition agents in solutions of additive mixtures, namely for monitoring additives in PbSn plating solutions, comprising the steps of: (a) preparing a basis solution which contains an electroactive species whose el... | 03/23/1993 |
| 5131999 | Voltammetric detector for flow analysis One of the fundamental limitations of voltammetric detectors in flow analysis is the problem of passivation or contamination of the working electrode. The present invention proposes a voltammetric detector based on the wall-jet principle which incorporate... | 07/21/1992 |
| 4939410 | Electrode arrangement with liquid-metal electrode of controllable surface Electrode arrangement with liquid-metal electrode of controllable surface, comprising a liquid-metal reservoir, a capillary connected thereto through a controllable valve and contact means being in electric contact with the liquid-metal in the capillary. ... | 07/03/1990 |
