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| Number | Title | Issue Date |
| 8172999 | Low maintenance reference electrode for electrochemical measurements A low maintenance reference electrode has a liquid junction body with a multiplicity of micron-sized capillary channels extending through the body for transporting electrolyte to a test solution. A viscosity-increasing agent thickens the electrolyte to limit its flo... | 05/08/2012 |
| 8048278 | Reference electrode having a flowing liquid junction and filter members A flowing junction reference electrode comprising a liquid junction member matched with a filter. The junction member and the filter are situated between a reference electrolyte solution and a sample solution. An array of nanochannels spans the junction member and p... | 11/01/2011 |
| 8016992 | Reference electrode including electrolyte containing optically-active material and automatic electrochemical potential correction apparatus using the same Disclosed herein is a reference electrode including an electrolyte containing an optically-active material, including: an electrode body provided at an end thereof with an electrolyte separation membrane and charged therein with an optically-active material and an e... | 09/13/2011 |
| 7943026 | Reference electrode having a flowing liquid junction and filter members A flowing junction reference electrode comprising a liquid junction member matched with a filter. The junction member and the filter are situated between a reference electrolyte solution and a sample solution. An array of nanochannels spans the junction member and p... | 05/17/2011 |
| 7918978 | Photoformed silicone sensor membrane A sensing device includes a sensing surface, and a matrix overlaying the sensing surface. The sensing device includes a photoformed membrane overlaying at least a portion of the matrix. The photoformed membrane includes a directly photoformed organosiloxane polymer ... | 04/05/2011 |
| 7867371 | Electrochemical sensor and method of manufacture An electrochemical sensor is provided that includes a housing defining a cavity for a reference electrolyte and defining an opening to the cavity configured to be proximate to a target fluid. The sensor further includes a junction plug comprising a porous material a... | 01/11/2011 |
| 7776195 | Integrated sample processing platform An integrated desktop analytic device comprises a fluidics station coupled to a confocal microscope detector, and a biochip is moved from the fluidics station to the detector without manual intervention of an operator. ... | 08/17/2010 |
| 7744736 | Method of manufacturing a reference electrode A method of manufacturing a reference electrode which has a shaft into which a diaphragm body of a porous ceramic is incorporated is comprised of the following method steps: Impregnating the ceramic with a lyogel precursor prior to incorporating the ceramic body int... | 06/29/2010 |
| 7704359 | Pressurized reference systems and process for their production The present application relates to a pressurized reference electrode and to a process for its production, said reference electrode comprising a chamber (11) which has a flowable reference electrolyte, and a portion of the wall of said chamber being formed fro... | 04/27/2010 |
| 7695601 | Electrochemical test apparatus and method for its use An electrochemical electrode probe includes an elongated body of a porous material disposed in a housing. The porous material is permeated with an electrolyte. A body of electrode material surrounds the porous body and functions as one electrode of an electrochemica... | 04/13/2010 |
| 7658826 | Reference electrode A reference electrode including a water-impermeable, non-conductive substrate having a surface; an electrically conductive metal/metal salt mixture layer in contact with the surface; a water-soluble alkali metal salt layer; and a water-impermeable barrier layer over... | 02/09/2010 |
| 7632385 | Reference electrode for potentiometric measurements, and method of monitoring the reference electrode A reference electrode for potentiometric measurements has a housing (2) with a hollow space (4) containing a liquid reference electrolyte (6) as well as a conductor element (8) immersed in the reference electrolyte. In addition, the housi... | 12/15/2009 |
| 7628901 | Reference electrode, salt bridge and ionic concentration measuring device by the use of reference electrode and salt bridge The present claimed invention is to provide a reference electrode wherein variations of a potential difference at a liquid junction can be removed almost completely, contamination of a sample solution can be minimized, a frequency to supply and replace an internal s... | 12/08/2009 |
| 7618523 | Cast membrane reference electrode and method of making A hand-held portable drug monitoring system to detect and quantitate cocaine and other organic drugs in saliva, sweat, and surface wipes by using an ion selective electrode or an array of ion selective electrodes. The ion selective electrode has a cast membrane refe... | 11/17/2009 |
| 7462267 | Reference electrode A reference electrode consisting of a metal in contact in contact with an electrolyte containing an anion or cation whose concentration in part determines the redox potential of the electrode? This electrolyte contains a polyelectrolyte that partially and reversibly... | 12/09/2008 |
| 7459066 | Reference electrode having a microfluidic flowing liquid junction A flowing junction reference electrode comprises a microfluidic liquid junction member situated between a pressurized reference electrolyte solution and a sample solution. The liquid junction member has an array of nanochannels spanning the member and physically con... | 12/02/2008 |
| 7459067 | Semi-permanent reference electrode A semi-permanent reference electrode for use in monitoring and measuring metals in field applications, such as cathodic protection. This electrode has an outer electrode body with a cap and porous plug. The outer electrode body is filled with a fill solution which i... | 12/02/2008 |
| 7431811 | Ruthenium oxide electrodes and fabrication method thereof A ruthenium oxide electrode. The ruthenium oxide electrode includes a substrate, a ruthenium oxide film formed thereon, and a conductive wire connecting to the ruthenium oxide film. The invention also provides a method of fabricating the ruthenium oxide electrode. | 10/07/2008 |
| 7393442 | Ex-situ PEM fuel cell testing: towards visualizing gas diffusion The invention comprises novel apparatuses and testing methods for evaluating a fluid diffusion component. The apparatus includes a fluid capable of undergoing oxidation or reduction, a half-cell electrode assembly able to receive the fluid, and a change in acidity i... | 07/01/2008 |
| 7387716 | Polymer electrolyte, half cell for electrochemical measurements, and the use thereof A polymer electrolyte for an electrochemical half cell, in particular for a reference half cell, contains a polymer which as a first monomer component contains at least one alkyl methacrylate. The alkyl methacrylate has a substituted alkyl group with from three to s... | 06/17/2008 |
| 7373195 | Ion sensor for long term use in complex medium Devices and methods for measuring a target ion concentration uses an electrode pair. The pair includes a working electrode and a reference electrode. The working and reference electrodes are ion-selective electrodes (ISEs). The reference ISE can include a sodium ISE... | 05/13/2008 |
| 7344627 | Reference electrode having a flowing liquid junction and filter members A flowing junction reference electrode comprising a liquid junction member matched with a filter. The junction member and the filter are situated between a reference electrolyte solution and a sample solution. An array of nanochannels spans the junction member and p... | 03/18/2008 |
| 7318273 | Method for producing pH probes A method for producing a pH measuring probe includes: providing an electrode wire protruding out of both sides of a recording device, the electrode wire being fixed to the recording device with the first end thereof, placing a glass tube over a second end of the ele... | 01/15/2008 |
| 7318887 | Solid state reference electrode A reference electrode includes a conductive substrate having a first surface and an ionically insulating, hydrophobic layer adjacent to the first surface having a plurality of non-selective ion exchange sites. ... | 01/15/2008 |
| 7314541 | Ion measuring composite electrode The present invention provides an improved ion measuring composite electrode, measuring instrument incorporating the composite electrode, and a manufacturing method for forming a preform of a composite double glass pipe for forming the ion measuring composite electr... | 01/01/2008 |
| 7300563 | Use of N-alllyl substituted amines and their salts as brightening agents in nickel plating baths An aqueous acidic plating bath for the electrodeposition of a nickel or nickel alloy deposit. The bath includes nickel ions and an additive having the general formula: H2C═CHCH2NR1R2 or [H2... | 11/27/2007 |
| 7279323 | Method for conducting receptor-ligand association reaction and reactor used therefor A method for conducting a receptor-ligand association reaction includes the steps of dipping a biochemical analysis unit including a substrate formed with a plurality of absorptive regions which contain receptors or ligands and are formed to be spaced apart from eac... | 10/09/2007 |
| 7276142 | Combination pH electrode with stable standard potential Disclosed are combination glass pH electrodes, the standard potential of which is stabilized by means one or more of the following structural modifications: (a) incorporating a noble metal internal element in the pH half-cell;... | 10/02/2007 |
| 7264701 | Reference electrode with non-blocking liquid junction A reference electrode traps silver ions and chloro complex ions leaching to an internal filling solution so that the blocking of the liquid junction can be prevented. A silver/silver chloride electrode can be provided as an internal electrode in an internal filling ... | 09/04/2007 |
| 7255002 | Tank seal for guided wave radar level measurement A microwave level gauge for measuring a level of a process material in a tank includes a ceramic seal and a microwave conductor. The ceramic seal is disposed adjacent to an opening in the tank and adapted to isolate circuitry from the process material. The microwave... | 08/14/2007 |
| 7238267 | Self-condensing pH sensor The present invention pertains to an apparatus and a means of constructing a pH sensor that can detect changes in pH levels of humidified gases and liquid samples. When electronically connected to a computerized or analog display means, sensitive quantitative measur... | 07/03/2007 |
| 7217562 | Gradient structures interfacing microfluidics and nanofluidics, methods for fabrication and uses thereof The present invention relates to a device for interfacing nanofluidic and microfluidic components suitable for use in performing high throughput macromolecular analysis. Diffraction gradient lithography (DGL) is used to form a gradient interface between a microfluid... | 05/15/2007 |
| 7211175 | Method and apparatus for potential controlled electroplating of fine patterns on semiconductor wafers Controlled-potential electroplating provides an effective method of electroplating metals onto the surfaces of high aspect ratio recessed features of integrated circuit devices. Methods are provided to mitigate corrosion of a metal seed layer on recessed features du... | 05/01/2007 |
| 7196524 | Sensor plug-in head, particularly for a potentiometric sensor and potentiometric sensor comprising a sensor plug-in head For simplified supply of potentiometric sensors with a reference electrolyte, a sensor plug head for connecting to a cable connection piece of a potentiometric sensor is provided. The sensor plug head including, besides the usual electric connections, a supply conne... | 03/27/2007 |
| 7189315 | Ion sensor and clinical analyzer using the same An ion sensor has a flow path through which a sample flows. An ion-exchange membrane is in contact with the sample in the sample flow path. An internal solution is provided on one side of the ion-exchange membrane. An internal electrode is provided so as to come in ... | 03/13/2007 |
| 7189578 | Methods and systems employing electrothermally induced flow for mixing and cleaning in microsystems A method and system for controlling flow motion in a channel/cavity in a microfluidic system includes positioning at least one pair of electrodes in and/or proximate to the channel/cavity. A buffer solution is placed in the channel/cavity, the buffer solution having... | 03/13/2007 |
| 7186325 | Pressure-resistant reference electrode for electrochemical measurements A pressure-resistant reference electrode for electrochemical measurements includes both a half cell and a primary current bridge, provided for closing an electrochemical contact between the half cell and a measurement medium, which current bridge contains a primary ... | 03/06/2007 |
| 7182847 | System and probe for monitoring pH levels of a sample medium A system for monitoring a pH level of a sample medium is disclosed herein as including a pH probe having a pH-sensitive electrode, a reference electrode and a temperature electrode arranged within a housing of the pH probe. The probe housing generally includes a fle... | 02/27/2007 |
| 7179421 | Multi-pin chemiresistors for microchemical sensors A multi-pin chemiresistor for use in microchemical sensors. A pair of free-standing, bare wires is supported by an electrically insulating support, and are oriented parallel to each other and spaced closely together. A free-standing film of a chemically sensitive po... | 02/20/2007 |
| 7179423 | Microfluidic system including a virtual wall fluid interface port for interfacing fluids with the microfluidic system A fluid interface port in a microfluidic system and a method of forming the fluid interface port is provided. The fluid interface port comprises an opening formed in the side wall of a microchannel sized and dimensioned to form a virtual wall when the microchannel i... | 02/20/2007 |
