Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7394263 | Sensor arrangement with a plurality of potentiometric sensors The sensor arrangement includes: a least two sample chambers; at least two potentiometric FET-sensors, especially ISFET-sensors or ChemFET-sensors, having, in each case, a sensitive surface section, wherein each sensitive surface section lies in flow connection with... | 07/01/2008 |
| 7371561 | In vitro, multiple electrode pair array and multiple treatment cell apparatus for use in electroporation A multiple electrode pair array apparatus is provided for use with a multiple well plate which has multiple wells distributed in a two-dimensional matrix array which has R rows and C columns. The multiple electrode pair array apparatus includes a non-conductive base... | 05/13/2008 |
| 7368917 | Electronic circuit for ion sensor with body effect reduction An electronic circuit for ion sensor with the body effect reduction includes a bridge-type floating source circuit provided with an input terminal, an output terminal reflecting the change in the potential dependent on ion concentration, and an ion-sensitive field e... | 05/06/2008 |
| 7329338 | Conductivity sensor for an ion exchange water softener A water treatment system includes a tank that contains a particle bed for removing minerals from water flowing through the tank. The regeneration of the particle bed is conducted in response to measuring its conductivity. A probe is provided for that measuring. That... | 02/12/2008 |
| 7288941 | Method and apparatus for measuring conductivity of powder materials using eddy currents A method and related apparatus for non-contact measurement of electrical conductivity of powder-like materials using eddy currents includes the steps of placing a powder to be measured in a hollow dielectric sampling container, the sampling container disposed and fr... | 10/30/2007 |
| 7276912 | Method for the operation of an analytical circuit for an electromechanical cell The invention proposes a method for operating an evaluation circuit for an electrochemical cell wherein the evaluation circuit is switched on for a first time period and is switched off for a second time period. The ratio between the first and the second time period... | 10/02/2007 |
| 7267322 | Wet well valve A valve assembly provides the ability for internal tank operations providing novel and unique methods for intricate measurement, monitoring, sampling, mixing, isolation, evaluation or other tasks desired inside tanks, vessels, piping or flow applications. The valve ... | 09/11/2007 |
| 7186356 | Analytical device A sensor for chemical species or biological species or radiation presenting to test fluid a polymer composition comprises polymer and conductive filler metal, alloy or reduced metal oxide and having a first level of electrical conductance when quiescent and being co... | 03/06/2007 |
| 7154274 | High-sensitivity measuring instrument and method of using the instrument to measure a characteristic value at a point in time A high-sensitivity measuring instrument comprising at least two sensors for detecting the same characteristics by touching a substance being measured with a specified time difference, wherein the between detection signals taken out simultaneously from respective sen... | 12/26/2006 |
| 7045046 | Sensor connection means The invention relates to a sensor adapted for electrical connection to a power source having an electrical contact means (3). The sensor has a first insulating substrate (1) carrying a first electrode (2) and a second insulating substrate (7 | 05/16/2006 |
| 7004016 | Probe system for ultrasonic processing tank The invention provides systems, methods and apparatus for processing delicate parts within a process tank such as an ultrasonic tank. Typically, one or more transducers connect to the tank and respond to drive signals from a generator to produce ultrasound within pr... | 02/28/2006 |
| 6940286 | Electrical impedance tomography Methods and apparatus are provided for obtaining a representation of the distribution of electrical impedance within a multiphase flow with an electrically continuous or discontinuous principle flow contained within an electrically conductive solid ring electrode, i... | 09/06/2005 |
| 6830668 | Small volume electrochemical sensor An electrochemical sensor is provided comprised of a thin sheet or film having at least one through-hole provided therein. The thin sheet or film has first and second opposing surfaces, at least a portion of the opposing surfaces being coated with a conductive coati... | 12/14/2004 |
| 6690172 | Multiple electric conductivity measuring apparatus A multiple electric conductivity measuring apparatus having at least two electric conductivity measuring cells each having at least two electrodes brought into contact with a substance to be measured, wherein the electric conductivity measuring cells are ... | 02/10/2004 |
| 6635167 | Apparatus and method for determining the concentration of a component of a sample An instrument (20) has a well (28a-b) for receiving a dry cell (75), an opening (78) through which a first connector (74) is exposed to the well (28a-b), and a boss (76) adjacent the opening (78). The boss (76) precludes the wrong terminal of the dry cell... | 10/21/2003 |
| 6632679 | Method to determine the speed of sedimentation of blood and other parameters correlated thereto, and relative apparatus Method and apparatus to determine the speed of sedimentation of blood and other parameters connected thereto, said method being carried out by detecting the development over time of the optical density, or absorbance, of a sample of blood, said sample bei... | 10/14/2003 |
| 6614212 | Differential conductivity hemodynamic monitor Method and apparatus for quantitatively determining a degree of recirculalion flow in a vessel of a fluid by altering the electrical conductivity of the fluid, sensing the difference in electromagnetic field after the fluid is altered, and integrating the... | 09/02/2003 |
| 6593759 | Apparatuses and methods for determining if protective coatings on semiconductor substrate holding devices have been compromised In one aspect, the invention includes an apparatus having a semiconductor substrate receiving device with at least one extension configured to hold a semiconductor substrate within a liquid bath. The device is configured to have at least a portion of the ... | 07/15/2003 |
| 6452371 | Differential conductivity hemodynamic monitor A flow rate of a fluid flowing in a tube is quantitatively determined by altering the electrical conductivity of the fluid by injection of a bolus of saline. The electrical conductivity of the altered conductivity is measured over the time it takes the al... | 09/17/2002 |
| 6411110 | Apparatuses and methods for determining if protective coatings on semiconductor substrate holding devices have been compromised In one aspect, the invention includes an apparatus comprising a semiconductor substrate receiving device with at least one extension configured to hold a semiconductor substrate within a liquid bath. The device is configured to have at least a portion of ... | 06/25/2002 |
| 6400159 | Orientation sensor especially suitable for use in an underground boring device An orientation sensor especially suitable for use in an underground device is disclosed herein. This orientation sensor includes a sensor housing defining a closed internal chamber, an arrangement of electrically conductive members in a predetermined posi... | 06/04/2002 |
| 6380746 | Monitoring fluid condition with a spiral electrode configuration A plug for insertion through the wall of a vessel filled with fluid to be monitored has an extension immersed in the fluid which has a pair of wire electrodes helically wound thereon in spaced arrangement. The electrodes are wound at a uniform pitch in on... | 04/30/2002 |
| 6379513 | Sensor connection means The invention relates to a sensor adapted for electrical connection to a power source having an electrical contact means (3). The sensor has a first insulating substrate (1) carrying a first electrode (2) and a second insulating substrate (7) carrying a s... | 04/30/2002 |
| 6376233 | Device for conducting research on cell specimens and similar materials A device (1) serves for conducting investigations on cell specimens, wherein the device has a microtiter plate or similar receiving device with a plurality of individual containers for the cell specimens. Furthermore, a measuring facility for recording ch... | 04/23/2002 |
| 6290827 | Device for electrochemical measurement A measuring system with a measuring body (2) mounted on a rotatable shaft (1) and being provided with electrodes (16) for measuring electrical currents obtained through chemical reactions within an analyte solution. In the rotatable shaft is housed an ele... | 09/18/2001 |
| 6200442 | Measuring device for the electrical measurement of test strips In a measuring device for measuring the concentration of a substance in a liquid applied to the test field of a test strip having two first electrical contacts at its forward end connected to the test field, a conductor plate inside of the device carries ... | 03/13/2001 |
| 6084392 | Electrode assembly An electrode assembly (1) for resistive pulse spectroscopy comprises two flat electrodes (3) substantially equal in size and shape and supported in face-to-face, parallel relationship to one another, and a plate-like fluid-tight insulator (2) positioned b... | 07/04/2000 |
| 6034520 | Method of determination of active ions by electric conductivity and electric conductivity metering system therefor Provided is a method and metering system for the determination of active ions emitted from certain active substances such as rayon fibers containing fine particles of tourmaline known to exhibit permanent spontaneous polarization. The method comprises: co... | 03/07/2000 |
| 6023169 | Electron capture detector ECD with a non-radioactive electron source for generation of ions in a reaction chamber. The reaction chamber consists of two partial chambers, of which one is evacuated and contains the electron source, and the other contains connections for the feeding ... | 02/08/2000 |
| 5963040 | Method and apparatus for detecting pin-holes in a passivation layer The present invention discloses a novel method and apparatus for de-etching pin-holes in a passivation layer that is deposited over a metal conductor layer on the surface of a semiconductor wafer by utilizing a substantially clear, electrically conductive... | 10/05/1999 |
| 5945830 | Flow through fluid pH and conductivity sensor A sensor for measuring pH and conductivity for liquids is disclosed. The sensor includes a housing having a pH cell and a conductivity cell. A pH fluid flow path is defined between a pH cell fluid inlet and pH cell fluid outlet. An aperture within the pH ... | 08/31/1999 |
| 5873990 | Handheld electromonitor device An apparatus is disclosed which is a microprocessor based instrument designed to conveniently and rapidly measure various analytes in environmental and biological samples. The instrument operates as a stand-alone unit powered by a battery or a DC power mo... | 02/23/1999 |
| 5869972 | Testing device using a thermochromic display and method of using same A testing device for qualitatively or quantitatively sensing an electrochemical or analogous reaction at the surface of a test strip (46), the current flowing or charge accumulated at the test strip being processed by electronics (50) to generate a curren... | 02/09/1999 |
| 5824494 | Method for enumerating bacterial populations A method for determining the number of microorganisms in a liquid sample, including the steps of dividing the liquid sample into a plurality of separate sub-samples, measuring the magnitude of at least one impedance component across each of the sub-sample... | 10/20/1998 |
| 5804974 | Materials characterization cell for polarization spectrum and streaming electrification measurements A materials characterization test cell is disclosed. The test cell includes a housing including spacers for supporting sample insulation materials, and a channel disposed in the housing to permit the passage of oil through the housing. A pair of electrode... | 09/08/1998 |
| 5749986 | Control of batching and curing processes Methods and apparatus for detecting and utilizing a voltage produced by a variety of materials for process control and analysis purposes.... | 05/12/1998 |
| 5712559 | Cathodic protection reference cell and corrosion sensor A combination and unitary corrosion monitor and reference cell for cathodic protection systems includes an elongated tubular metal element of the same material as the structure to be protected and a reference cell on one end of the tubular element, adapte... | 01/27/1998 |
| 5686829 | Voltammetric method and apparatus During voltammetric analysis of liquids, the indicator electrode must be frequently changed in order to prevent memory effects and resultant changes to basic conditions during measurement. In order to be able to change the indicator electrodes simply, a p... | 11/11/1997 |
| 5661403 | Apparatus and method for testing a solid electrolyte An apparatus and method for measuring conduction current through a sample portion of the surface of the solid conductor that is in contact with a liquid conductor, such as the solid electrolyte of a liquid-solid-liquid battery, is provided. The apparatus ... | 08/26/1997 |
| 5643536 | Method and apparatus for metering a reagent into a flowing medium A method for metering a reagent into a flowing medium includes adjusting a quantity of a reagent to be metered per unit of time into a flowing medium as a function of a thickness of a reaction zone in a catalytically active material. An apparatus for mete... | 07/01/1997 |
