| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 205785500 | Gaseous oxygen or oxygen containing compound | 35 |
| 20080210576 | Multilayer gas sensor having dual heating zones - A gas sensor for detecting NO | 09-04-2008 |
| 20080302676 | NANOBIOSENSOR AND CARBON NANOTUBE THIN FILM TRANSISTORS - The present invention is directed to systems and methods for detecting biological and chemical species in liquid and gaseous phase. The systems and methods utilize carbon nanotubes to enhance sensitivity and selectivity towards the reacting species by decreasing interference and detecting a wide range of concentrations. | 12-11-2008 |
| 20090038962 | FLUE GAS ANALYSER - A fuel gas analyzer for measuring the concentration of oxygen in fuel gas, comprising an electrochemical oxygen sensor and water vapor removing means for reducing the relative humidity of received gas and/or nitrogen-containing-gas removing means for removing from received gas one or more gaseous species comprising nitrogen and oxygen which are either nitrogen dioxide, or formed from nitrogen dioxide in the presence of sufficient water vapor, which would otherwise lead to damage of the electrochemical oxygen sensor, | 02-12-2009 |
| 20090272656 | Gas Sensor - A method for the determination of the carbon dioxide content of an exhaled gas stream is provided, the method comprising measuring the water vapour content of the exhaled gas stream, and determining the concentration of carbon dioxide in the exhaled gas stream from the measured water vapour content. A particular method comprises causing the gas stream to impinge on a sensing element comprising a working electrode and a counter electrode; applying an electric potential across the working electrode and counter electrode; measuring the current flowing between the working electrode and counter electrode as a result of the applied potential; and determining from the measured current flow an indication of the concentration of the water vapour in the gas stream. A sensor is also described. | 11-05-2009 |
| 20100065442 | FLUE GAS ANALYSER - A flue gas analyser for measuring the concentration of oxygen in flue gas, comprising an electrochemical oxygen sensor and water vapour removing means for reducing the relative humidity of received gas and/or nitrogen-containing-gas removing means for removing from received gas one or more gaseous species comprising nitrogen and oxygen which are either nitrogen dioxide, or formed from nitrogen dioxide in the presence of sufficient water vapour, which would otherwise lead to damage of the electrochemical oxygen sensor, | 03-18-2010 |
| 20100089773 | TOTAL ORGANIC COMPOUND (TOC) ANALYZER - The invention disclosed is a total organic carbon (TOC) analyzer comprised of an electrochemical cell comprising a diamond-film electrode doped with boron or other conductivity inducing material. The diamond-film electrode is the working electrode and carries out the oxidation of TOC to produce carbon dioxide. The apparatus further comprises sensors for detecting the carbon dioxide produced. Such sensors include but are not limited to a tunable diode laser and/or ion-selective electrode. The invention also discloses a method for measuring TOC in an aqueous solution using a total organic carbon analyzer. | 04-15-2010 |
| 20100133120 | Electrochemical Sensor - An electrochemical sensor ( | 06-03-2010 |
| 20100288652 | APPARATUS AND METHOD OF REGENERATING ELECTROCHEMICAL GAS SENSORS - A method of improving performance of electrochemical gas sensors includes cycling potentials applied to one or more of the electrodes of the respective sensor(s) to improve performance of a different electrode. In a process for treating a reference electrode, potentials can be applied to working and, or counter electrodes so as to modify the environment in the vicinity of the reference electrode. An apparatus can carry out the method automatically. | 11-18-2010 |
| 20100326845 | METHOD AND ELECTROCHEMICAL SENSING STRIP WITH SCREEN-PRINTED THREE ELECTRODES FOR DETERMINING CONCENTRATION OF DISSOLVED OXYGEN IN A SOLUTION - A new electrochemical method for determining dissolved oxygen concentration is developed. It employs cobalt based oxide or complex to modify a conductive electrode surface. This method can be applied to determine dissolved oxygen in regard to medical and environmental demands. The chemical formula of the cobalt based oxide or complexes can be shown as Co | 12-30-2010 |
| 20110031134 | ELECTROCHEMICAL ANTIOXIDANT SENSORS BASED ON METALLIC OXIDE MODIFIED ELECTRODES FOR THE GENERATION OF HYDROXYL RADICALS AND THE SUBSEQUENT MEASUREMENT OF ANTIOXIDANT ACTIVITIES - The present invention relates to a new antioxidant sensor based on metallic or metallic oxide modified electrode and its associated method for electrochemically generating hydroxyl radicals and their subsequent use for the electrochemical measurement of antioxidant activities based on hydroxyl radical scavenging properties of the tested sample. | 02-10-2011 |
| 20110056846 | POLY(ANILINE BORONIC ACID) POLYMERS AND METHODS OF USE - The present invention includes sensors and systems that include a sensor. A sensor includes a sensor polymer, where the polymer includes a repeating unit having an anilineboronic acid-phosphate complex or an anilineboronic acid complexed with an alcohol or diol. The sensor polymer may be a copolymer, such as a random copolymer, a block copolymer, or an alternate copolymer. The present invention also provides methods for using the sensors described herein, including methods for detecting the presence of an analyte, such as CO | 03-10-2011 |
| 20110240488 | DEVICE FOR DETERMINING CARBON MONOXIDE CONCENTRATION AND RELATED METHOD - The invention relates to a device for determining the CO concentration in a gas containing hydrogen, said device comprising a detection electrode ( | 10-06-2011 |
| 20110266160 | METHOD AND APPARATUS FOR ALCOHOL CONCENTRATION DETECTION IN A BLOOD SAMPLE - An alcohol level detection apparatus comprising a chamber ( | 11-03-2011 |
| 20120091012 | CONVERTER FOR USE WITH SENSING DEVICES - A system and method are disclosed for utilizing sensors with existing devices. An interface module is used in combination with a newer sensor, such as a fluorescence oxygen sensor, and an older legacy device. The older legacy device supplies a polarizing voltage, and anticipates a measured current of between 0 and 100 nA. The newer sensor requires no polarizing voltage and delivers an output of 0-10 volts in one embodiment, and 4-20 mA in another embodiment. The interface module receives the output from the sensor, and converts it into a useable signal to the legacy device. In another embodiment, the interface module comprises a number of outputs, such that both legacy devices and newer devices can be in communication with the sensor simultaneously. The interface module can be used in conjunction with a reactor chamber or other pharmaceutical process. | 04-19-2012 |
| 20130168266 | METHODS AND DEVICES FOR INDENTIFYING AN ANALYTE - The present invention describes a biosensing device and method. Specifically, binding of target analyte to a sensor strip provides for reduction of metal ions in solution. The reduced metal can perform catalytic reactions leading to the production of easily identifiable products such as gas bubbles or colored molecules. | 07-04-2013 |
| 20130186776 | SENSOR INTERROGATION - A method of operating a system having at least one sensor for detecting an analyte gas in an ambient atmosphere and a sensor responsive to oxygen includes providing a volume in fluid connection with the sensor responsive to oxygen. The volume has an open state in which the volume is in fluid connection with the ambient atmosphere and at least a first restricted state in which entry of molecules from the ambient atmosphere into the volume is restricted as compared to the open state. The method further includes placing the volume in the open state, subsequently placing the volume in the first restricted state, and measuring a dynamic output of the sensor responsive to oxygen while the volume is in the first restricted state. The dynamic output provides an indication of the status of one or more transport paths of the system. | 07-25-2013 |
| 20130186777 | SENSOR INTERROGATION - A system includes a system housing including an inlet, at least one gas sensor responsive to a first analyte gas other than oxygen within the system housing and in fluid connection with the inlet, and a sensor responsive to oxygen within the system housing and in fluid connection with the inlet. The sensor responsive to oxygen is formed to be chemically separate from the at least one gas sensor responsive to the first analyte gas other than oxygen. The sensor responsive to oxygen is responsive to a change in the concentration of oxygen arising from creation of a driving force in the vicinity of the inlet to provide an indication of a state of a transport path between the inlet of the system and the at least one gas sensor responsive to the first analyte gas other than oxygen. | 07-25-2013 |
| 20130193004 | SENSOR INTERROGATION - A method of testing a system having at least one electrochemical sensor for detecting an analyte gas within a housing of the system, the housing having an inlet, the at least one electrochemical sensor including an electrically active working electrode in fluid connection with the inlet of the system, the method including biasing the electrically active working electrode at a first potential, to detect the analyte gas and biasing the electrically active working electrode at a second potential, different from the first potential, such that the at least one electrochemical sensor is sensitive to a driving force created in the vicinity of the inlet to test at least one transport path of the system. The method may further include creating the driving force in the vicinity of the inlet of the housing of the system and measuring a response of the electrically active working electrode to the driving force. | 08-01-2013 |
| 20130277236 | PROCESS AND DEVICE FOR REGULATING THE AIR DEMAND OF EXTRACTIVE MEROX UNITS - Process and device for measuring the conversion of mercaptans to disulfides, in which the progress of the reaction for producing disulfides is monitored by measuring the redox potential. | 10-24-2013 |
| 20140076741 | Digital Controller For An Oxygen Sensor - An apparatus and method are provided for digitally controlling an oxygen sensor. The apparatus comprises a computer and digital circuitry coupled to the oxygen sensor to convey information between the oxygen sensor and the computer. The oxygen sensor includes a pump cell and at least one Nernst cell configured to indicate the difference in oxygen content in a test medium relative to a reference medium. A pump control circuit operates the pump cell according to signals received from the computer based on output signals from the Nernst cell. A reference voltage circuit enables the computer to determine impedances of the oxygen sensor as a function of sensor temperature and pressure. A Nernst read circuit transmits output signals from the oxygen sensor digitally to the computer. Digital signals received by the computer are compared with stored reference information so as to determine the oxygen content of the test medium. | 03-20-2014 |
| 20140262835 | MINIATURIZED GAS SENSOR DEVICE AND METHOD - Various embodiments of a gas sensor device and method of fabricating a gas sensor device are provided. In one embodiment a gas sensor device includes a base substrate, an electrolyte layer disposed on the base substrate and a plurality of potentiometric sensor units electrically coupled to the base substrate. Each potentiometric sensor unit includes an electrolyte layer disposed on the base substrate, a sensing electrode comprising tungsten oxide (WO | 09-18-2014 |
| 20140262836 | METHOD FOR MEASURING AMOUNTS OF COMPONENTS AND CALORIFIC VALUE OF COAL GAS - A method for measuring the component and calorific value of goal gas. The method includes measuring a volume concentration of H | 09-18-2014 |
| 20140262837 | Device useful for measuring the amount or concentration of a volatile organic compound - The present invention provides for a device for detecting one or more target gas compounds, such as a volatile organic compound, such as formaldehyde, comprising a chamber comprising a gas inlet and a gas outlet, wherein the chamber is capable of absorbing one or more non-target gas compounds. When the device is in use, the gas outlet is in fluid communication with a detector capable of detecting the amount or concentration of the one or more target gas compounds. | 09-18-2014 |
| 20140318989 | System and method for monitoring and oxygenating an automobile cabin - A system for monitoring and oxygenating an automobile cabin includes at least one oxygen sensor adapted to determine oxygen level inside an automobile cabin, at least one infotainment system adapted to facilitate user of the system to select a required amount of oxygenation with in a preferred range of oxygenation, at least one oxygen producing unit configured to provide oxygen rich air into said automobile cabin and a control device adapted to regulate functioning of all other elements of the system. Further, the control device determines the preferred range of oxygenation based on the oxygen level inside an automobile cabin and regulates functioning of oxygen producing unit to provide the required amount of oxygenation. | 10-30-2014 |
| 20150047990 | CO2 CONCENTRATION MEASUREMENT IN DRY GAS MIXTURES - Described herein is an apparatus and methods for characterizing a fluid composition including exposing electrolyte to one fluid mixture, collecting a signal from an electrode in contact with the electrolyte, and simultaneously exposing the electrolyte to a second fluid, collecting a signal from a second electrode in contact with the electrolyte exposed to the second fluid, and comparing the signal difference between the electrodes with the Nerst equation wherein the temperature of the electrolyte is above 488° C. Carbon dioxide, nitrogen, and/or oxygen may be present in the fluid and/or the second fluid. | 02-19-2015 |
| 20150096905 | POTENTIOSTATIC CIRCUITS FOR ELECTROCHEMICAL SENSORS - An electrochemical detector can be powered partly, or entirely by voltages generated by the sensor. Using either active circuits or a passive component which produces a predetermined voltage drop in the respective sensor, two electrode consumable anode oxygen sensors can be provided which do not evolve hydrogen during operation. | 04-09-2015 |
| 20150108009 | APPARATUS, COMPOSITION AND METHOD FOR DETERMINATION OF CHEMICAL OXIDATION DEMAND - Methods for measuring chemical oxygen demand, a composition and a kit useful for measuring chemical oxygen demand, a method for calibrating a chemical oxygen demand analysis method, and a method for determining carbonaceous chemical oxygen demand are disclosed. | 04-23-2015 |
| 20150129435 | ELECTROCHEMICAL TOTAL ORGANIC CARBON ANALYZER - An apparatus is disclosed for measuring the total organic content of an aqueous stream. The apparatus comprises a platinum electrode for measuring CO | 05-14-2015 |
| 20150136616 | MEASURING APPARATUS AND METHOD FOR DETECTING THE HYDROCARBON FRACTION IN GASES WHILE TAKING INTO ACCOUNT CROSS-SENSITIVITIES - The disclosure relates to a measuring apparatus and method for determining a measured value in a gas flow accounting for cross-sensitivities of the measuring appliance from at least one additional constituent in the gas flow interfering with the measured value. The measuring apparatus has a device for dividing original gas flow to be measured into a first and second measured gas flows, a device for changing the content of measured gas in the second measured flow by changing an influencing variable that influences the content of the measured gas, and a sensor element having a sensor for determining the value. The apparatus includes an evaluating unit for evaluating the measured values, wherein first and second measured flows are alternately fed to the sensor element to determine two intermediate measured values in two measured flows, respectively. The evaluating unit calculates the final value based on the two intermediate measurement results. | 05-21-2015 |
| 20150377826 | AGING DEVICE FOR CONSTANT-POTENTIAL ELECTROLYTIC GAS SENSOR AND AGING METHOD FOR CONSTANT-POTENTIAL ELECTROLYTIC GAS SENSOR - According to one embodiment, an aging device includes an operation and measurement unit, and a control unit. The operation and measurement unit is configured to perform application of potential between at least any one of a counter electrode and a reference electrode provided in a constant-potential electrolytic gas sensor and a working electrode provided in the constant-potential electrolytic gas sensor and measurement of an electric current flowing between the working electrode and the counter electrode. The control unit is configured to calculate the potential at a start of the flow of the electric current between the working electrode and the counter electrode and control the operation and measurement unit such that potential higher than the potential at the start of the flow of the electric current is applied between at least any one of the counter electrode and the reference electrode and the working electrode. | 12-31-2015 |
| 20160061770 | ELECTROCHEMICAL DETECTION OF CARBON DIOXIDE USING A CARBOHYDRATE BASED COORDINATION POLYMER - An electrochemical sensor for an analyte is provided. The electrochemical sensor includes CDMOF-2. The CDMOF-2 is capable of binding reversibly to CO | 03-03-2016 |
| 20160091459 | METHOD AND APPARATUS FOR DIAGNOSING DISCONNECTION OF OXYGEN SENSOR - A method for diagnosing disconnection of an oxygen sensor includes measuring, by a controller, a voltage supplied to an oxygen sensor through a voltage divider; measuring a voltage of a reference cell of the oxygen sensor; determining whether the voltage supplied to the oxygen sensor and the voltage of the reference cell fall within a reference range from preset reference values, respectively; and determining that a ground wire of the oxygen sensor is disconnected, when the voltage of the oxygen sensor or the voltage of the reference cell deviates from the reference range. | 03-31-2016 |
| 20160131614 | Dissolved Oxygen Measurement System and Method of Calibrating Dissolved Oxygen Meter - In order to improve measurement accuracy by accurately calibrating sensitivity of a dissolved oxygen meter without impairing easiness in calibration, the present invention includes a dissolved oxygen measuring device that includes a cell to be loaded with a sample solution, and a dissolved oxygen meter that is attached to the cell and measures an oxygen concentration in the sample solution; and a mode switching mechanism to switch between a measurement mode, in which a sensor surface of the dissolved oxygen meter is substantially in contact with the sample solution in the cell, and a calibration mode, in which the sensor surface is substantially not in contact with the sample solution in the cell, by feeding air into the cell through a feed port disposed on the cell, and by discharging part of the sample solution through a discharge port disposed on the cell. | 05-12-2016 |
| 20160153927 | Galvanic Oxygen Sensor For Measurement In Gas Mixtures | 06-02-2016 |
| 20160169836 | High Temperature Sensor for Reducing Gas | 06-16-2016 |
