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| Number | Title | Issue Date |
| 7569393 | Analytical test cartridge; and, methods An analytical test cartridge is provided. The analytical test cartridge can be used for medical analyses of liquid samples removed from a patient, for example blood. The analytical test cartridge is configured to provide for titration experiments. An example of a ti... | 08/04/2009 |
| 7351590 | Methods and compositions for directed microwave chemistry The present invention concerns a novel means by which specific chosen reactions can be accelerated through the use of a new type of artificial enzyme. The invention allows specific reactions to occur at an accelerated rate, even in the presence of other non-chosen m... | 04/01/2008 |
| 7348182 | Directed microwave chemistry The present invention concerns a novel means by which chemical preparations can be made. Reactions can be accelerated on special chips using microwave energy. The chips contain materials that efficiently absorb microwave energy causing chemical reaction rate increas... | 03/25/2008 |
| 7349760 | System and method for sensing and controlling the concentration of a chemical agent in a solution A system for measuring and controlling the concentration of a chemical agent in a solution has a reaction cell for receiving a sample, a titrant dropper for releasing one or more drops of titrant into the sample, a first photosensor for sensing disruptions of light ... | 03/25/2008 |
| 7326573 | Assay procedures and apparatus In cytometry and like procedures, particles containing signal dyes are exposed to a laser, and the resulting fluorescence is assessed in two different wavelength bands. When the particle is a single-assay particle, or when the particle carries only a single dye, the... | 02/05/2008 |
| 7221448 | Test cell for a noble gas polarizer The invention relates to a sample cell with a glass body comprising a gas inlet and a gas outlet and at least one orifice, a plane glass window is fused into the orifice, the shape and size of the window corresponds to the shape and size of the orifice, the orifice ... | 05/22/2007 |
| 7214537 | Real-time component monitoring and replenishment system for multicomponent fluids A multicomponent fluid composition monitoring and compositional control system, in which a component analysis is effected by titration or other analytical procedure, for one or more components of interest, and a computational means then is employed to determine and ... | 05/08/2007 |
| 7205153 | Analytical reagent for acid copper sulfate solutions Embodiments of the invention provide an analytical method and analytical reagent solutions for determining the concentration of electrolyte components, such as copper, acid and chloride constituents in an acid or basic metal plating bath using a chemical analyzer. C... | 04/17/2007 |
| 7153690 | Real-time component monitoring and replenishment system for multicomponent fluids A multicomponent fluid composition monitoring and compositional control system, in which a component analysis is effected by titration or other analytical procedure, for one or more components of interest, and a computational means then is employed to determine and ... | 12/26/2006 |
| 7141430 | Microrespirometer and associated methods A method for measuring an evolution rate of a gas from a sample includes equilibrating a sample with an alkaline solution and a pH indicator and permitting the alkaline solution to absorb formed carbon dioxide in an enclosed headspace. From the pH indicator at equil... | 11/28/2006 |
| 7029624 | High-speed fabrication of highly uniform metallic microspheres In a high-speed fabrication process for producing highly uniform metallic microspheres, a molten metal is passed through a small orifice, producing a stream of molten metal therefrom. A series of molten metal droplets forms from the break up of the capillary stream.... | 04/18/2006 |
| 6890758 | Measurement of complexing agent concentration in an electroless plating bath The concentration of citrate complexing agent in an electroless cobalt or nickel plating bath is determined by titrating a sample of the electroless plating bath containing a small concentration of free fluoride ion with a standard lanthanum nitrate solution. During... | 05/10/2005 |
| 6667178 | Optimization of caustic usage A method for determining the quantity of phenol extracted into an aqueous solution of an alkali metal hydroxide uses a measurement of the pH of the solution, from which the equivalents of phenol relative to alkali metal hydroxide in solution is determined... | 12/23/2003 |
| 6484556 | Thin film detection during fluid aspiration The accurate determination of the presence of a fluid in a container is determined by assessing the difference in various pressure readings relative to a threshold value. The method distinguishes between actual aspiration of a fluid and aspiration of a fi... | 11/26/2002 |
| 6475438 | Field test apparatus for analysis of coolants and heat-exchange fluids A test method and apparatus for determining the content of carboxylic acid-based corrosion inhibitors in a coolant or heat exchange fluid. The amount of acidic reagent added to the coolant or fluid between two pH equilibrium points is measured to determin... | 11/05/2002 |
| 6413716 | Method for detection of human parvovirus and reagent therefor A method for detection of human parvovirus B19, comprising the steps of: (1) bringing a sample into contact with fixed P-antigen positive red cells in a medium at pH 5.6&#b1;0.6; and (2) determining whether or not hemagglutination occurs; and a reagent fo... | 07/02/2002 |
| 6372505 | Process and apparatus for titrating In a process for titrating substances by adding increments of a titrant in time intervals, the course of the reaction is monitored in its approach toward the end point (EP), and the addition of titrant is controlled. At least one differential component is... | 04/16/2002 |
| 6274384 | Method for specific substance and molecule detection A system for detecting a specific substance or analyte of interest is provided that includes one or more sensing units and an instrument for analyzing the sensing units. Each sensing unit preferably includes a substrate, an attachment layer and at least o... | 08/14/2001 |
| 6110426 | Methods for fabricating microarrays of biological samples A method and apparatus for forming microarrays of biological samples on a support are disclosed. The method involves dispensing a known volume of a reagent at each selected array position, by tapping a capillary dispenser on the support under conditions e... | 08/29/2000 |
| 6096274 | Analysis device The invention relates to an analysis device with a multi-way valve which is connected, via a pump line, to a bidirectional pump. A storage member for storing a sample fed to it and any auxiliary substances is accommodated in the pump line. The multi-way v... | 08/01/2000 |
| 6025484 | Protein D--an IgD-binding protein ofhaemophilus influenzae A novel surface exposed protein of Haemophilus influenzae or related Haemophilus species is described. The protein named protein D is an Ig receptor for human IgD and has an apparent molecular weight of 42,000. Protein D can be detected in all of 116 enca... | 02/15/2000 |
| 5968731 | Apparatus for automated testing of biological specimens An apparatus for performing automated testing of infections biological specimens is disclosed. The apparatus comprise a process controller for translating user commands into test instrument suite commands, and a test instrument suite comprising a means to... | 10/19/1999 |
| 5925514 | Apparatus for testing for infection by a retrovirus An apparatus for testing specimens for infection by a retrovirus is described. The apparatus comprises a process controller including a communications module for translating user commands into test instrument suite commands and a means for communicating s... | 07/20/1999 |
| 5779977 | Nucleic acid amplification reaction apparatus and method Apparatus and method for performing a nucleic acid amplification reaction and preferably a polymerase chain reaction (PCR) in a reaction mixture in at least one capillary tube. Several different embodiments are disclosed. One embodiment cycles a sample th... | 07/14/1998 |
| 5618495 | Colorimetric titration method and apparatus The invention relates to colorimetric titration method, a titrator and colorimeter device. The titrating apparatus comprises radiant energy means for producing radiant energy. The device includes means for modulating an amplitude of an intensity of the ra... | 04/08/1997 |
| 5601784 | On-line control and monitoring system for wet lime/limestone flue gas desulfurization process An on-line control and monitoring system for automatically and continuously analyzing key process indicators in a wet lime/limestone flue gas desulfurization process is provided. The on-line control and monitoring system obtains a slurry and/or a slurry f... | 02/11/1997 |
| 5529907 | Method of determining patient neutrophil activity and apparatus for practicing the same The present invention relates to a method of determining the metabolic state of neutrophils present in the body of a patient. In particular, the present invention involves the measurement of the rates of in vitro glycolysis in blood samples taken from ind... | 06/25/1996 |
| 5389546 | Method for determining and monitoring constituent concentration of an aqueous metalworking fluid The total alkalinity of an aqueous metalworking fluid is monitored and controlled by a continuous titration method that continuously supplies a stream of the metalworking fluid, at a known, controllable flow rate, to a flow through chamber having therein ... | 02/14/1995 |
| 5368819 | Automated process chloride analyzer An automated analysis system is provided for the determination of impurities in a liquified hydrocarbon stream. The system employs a hydrocarbon capture vessel for capturing a hydrocarbon sample, a water scrubbing vessel for extracting impurities from the... | 11/29/1994 |
| 5364594 | Method and apparatus for the coulometric detection of dissolved gases particularly TCO2 in seawater A system for coulometric TCO2 analysis wherein a sample bottle is pressurized by a head space gas having a CO2 composition which approximates the dissolved CO2 concentration in the sample. The head space gas transfers to s... | 11/15/1994 |
| 5340541 | Automated Karl Fischer titration apparatus and method Automation of the coulometric Karl Fischer titration has allowed for the accurate, precise determination of moisture content of lyophilized hGH formulations. The system of the present invention utilizes a vented, two-hole sampling/dispensing probe that di... | 08/23/1994 |
| 5302253 | On-line acid monitor and neutralizer feed control of the overhead water in oil refineries A method and apparatus for automatically measuring the acidity of overhead water in an oil refinery, and dispensing a neutralizing agent into the refinery system at a rate responsive to that measurement. A sample of overhead water is collected and passed ... | 04/12/1994 |
| 5291418 | Adjustment of electric potential by automatic titration Automatic titration method and apparatus provides for adjustment of the electric potential of a solution. A programmed computer responsive to iterative measurements of the potential regulates a two-phase adjustment process which approaches the desired ele... | 03/01/1994 |
| 5260220 | Method and apparatus for monitoring impurities in a liquified hydrocarbon stream An automated analysis system for the determination of impurities in a liquified hydrocarbon stream. The system employs a hydrocarbon capture vessel for capturing a hydrocarbon sample, a water scrubbing vessel for extracting impurities from the hydrocarbon... | 11/09/1993 |
| 5192509 | Apparatus for automatic titration An automatic titration device for use in either batch processing or a continuous processing mode to identify quantitative fluid properties. The device consists of a plurality of reservoirs each connected to a respective plurality of pumps. A central compu... | 03/09/1993 |
| 5186895 | Method and apparatus for automatic analysis of fluid composition involving a time-dependent variation thereof An automatic analytical apparatus in which a series of operations ranging from the sampling into a treating receptacle, pretreatment, analysis and discharge of a fluid sample to the preparation for the next analysis are repeated automatically in order, wh... | 02/16/1993 |
| 5132233 | Sample injection cell The sample injection cell comprises a body and a bore through the body for receiving a probe to pass fluid sample into the bore. A transverse passageway into the body permits a diluent to enter the bore and be mixed with a sample in a predetermined ratio ... | 07/21/1992 |
| 5108929 | Method and system for treatment of alkaline streams Efficient control of the pH of a flowing alkaline wastewater stream is accomplished by monitoring the pH of the flowing stream, generating a signal in response to the pH monitored, and injecting CO2 as necessary to reduce the pH. High pressure ... | 04/28/1992 |
| 5104527 | Automatic total reducers monitoring and adjustment system using titration A process and apparatus for automatically monitoring or adjusting, or both, the concentration of total reducers (i.e. reduced sulfur-containing constituents which consume iodine) in an aqueous medium (e.g. waste water stream) whereby the time period for i... | 04/14/1992 |
| 5080866 | Analytic appparatus and method A method of analysis in which a first fluid is delivered to a sensing position at a controlled first rate of flow through a fluid junction. Fluid including this first fluid is pumped to the sensing position at a rate of flow greater than the first rate, w... | 01/14/1992 |
