| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 205782500 | Using semipermeable membrane | 10 |
| 20110180426 | Modulating Polarization Voltage of Amperometric Sensors - The service life of amperometric electrochemical oxygen sensors is increased by operating the electrodes of such sensors at a polarization voltage suitable for measuring the oxygen content of samples only during calibration or when measuring such samples and thereafter modulating the polarization voltage to a lower voltage such that substantially no electrical current is produced by the electrodes. | 07-28-2011 |
| 20120125790 | ELECTROCHEMICAL SENSOR FOR MEASURING THE OXYGEN PARTIAL PRESSURE IN A PROCESS FLUID AND A METHOD FOR TESTING ITS FUNCTION - An electrochemical sensor for measuring the oxygen partial pressure in a process fluid, comprises
| 05-24-2012 |
| 20120168322 | Oxygen Sensor with a Microporous Electrolyte Layer and Partially Open Cover Membrane - The present invention concerns an electrochemical sensor for determining oxygen dissolved in an aqueous measuring medium, a process for its production as well as a method for determining oxygen dissolved in an aqueous measuring medium using the electrochemical sensor. | 07-05-2012 |
| 20140061063 | ELECTRODE FOR ACTIVE OXYGEN SPECIES AND SENSOR USING THE ELECTRODE - An electrode for active oxygen species comprising a conductive component with a polymer membrane of a metal porphyrin complex formed on the surface is disclosed. The electrode for active oxygen species can detect active oxygen species such as superoxide anion radicals, hydrogen peroxide, and .OH and other active radical species (NO, ONOO—, etc.) in any environment including in vivo environment as well as in vitro environment. The electrode thus can be used for specifying various diseases and examining active oxygen species in food or in water such as tap water and sewage water. | 03-06-2014 |
| 20140332411 | ELECTROCHEMICAL SENSOR FOR PH MEASUREMENT - A method of determining the pH of an aqueous liquid which contains little or no buffer, such as does not contain more than 0.01 moles per litre of pH-buffering partially dissociated acid, base and/or salt, uses an electrode with at least one redox active compound immobilized thereon convertible electrochemically between reduced and oxidized forms with transfer of at least one proton between the compound and the aqueous liquid. Varying potential is applied to the electrode, observing current flow as potential is varied, determining the applied potential at a maximum current for redox reaction of the compound, and determining pH from the potential at maximum current. The electrode has a covering layer which separates the redox active compound from the aqueous liquid but selectively allows the passage of hydrogen ions between the redox active compound and the aqueous liquid. The presence of the covering layer enhances accuracy of the measurement of pH of the aqueous liquid. | 11-13-2014 |
| 20160077042 | PHOSPHATE SENSOR, ITS USE AND ITS METHOD OF PREPARATION - A phosphate sensor employs a membrane which comprises a molecularly imprinted polymer produced from a thiourea derivative as functional monomer and a phosphate analogue (e.g. phenylphosphonic acid) as template. The membrane can be used for electrochemical detection and quantification of phosphate species, either amperometrically or potentiometrically. | 03-17-2016 |
| 205783000 | Gaseous oxygen or oxygen containing compound | 4 |
| 20100264042 | METHOD OF MONITORING GAS COMPOSITION - A method of determining the general or a specific condition of a subject is disclosed, the method comprising measuring the concentration of each of a plurality of components in a single sample of the gas stream exhaled by the subject; and generating information regarding the concentration of each of the plurality of components such that the concentrations of the components are directly comparable. The method is particularly suitable for assessing the condition of the respiratory system of a subject. The method preferably employs electrochemical sensors to measure the concentration of the target components in the exhaled gas stream. | 10-21-2010 |
| 20110284394 | Portable Electrochemical Multiphase Microreactor for Sensing Trace Chemical Vapors - A multiphase microreactor includes gas and liquid microchannels separated by a nanoporous membrane. Rapid mass transfer of gas samples into the liquid electrolyte allows the microchannel/membrane assembly to be used as a fast and sensitive gas sensor. When the oxime chemistry is adapted into the microchannel sensor, the microchannel sensor selectively responds to organophosphates and organophosphate simulants. In addition, a double microchannel design may be used to reduce voltage drift and incorporate a reference electrode into the sensor assembly. Methods of detecting organophosphates are also disclosed. | 11-24-2011 |
| 20150330938 | METHOD AND APPARATUS FOR MONITORING GAS CONCENTRATION - A probe incorporates a sensor for measuring a concentration of a gas in solution in a fluid medium. The sensor ( | 11-19-2015 |
| 20150369774 | Carbon Monoxide Sensor System and Method - A gas sensor having first and second electrodes, an ion conducting solid electrolyte membrane positioned therebetween, first and second electrically conductive gas diffusion layers, first and second electrode contact members for electrically coupling said first and second electrodes to an external circuit, a water reservoir, a gas entry passageway and a water permeation barrier for controlling the transport of water vapor to the ion conducting solid electrolyte membrane. The water permeation barrier is a thin walled member which allows water vapor to diffuse therethrough and evaporate from an exit surface, the thickness of the water permeation barrier controlling the internal relative humidity of the sensor. A method for adjusting the present sensor in-situ due to changes in the current humidity conditions of the sensor so as to keep the gas sensitivity loss within a predetermined range is also disclosed. | 12-24-2015 |
