| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 205788000 | For water (e.g., moisture, etc.) | 6 |
| 20090283423 | WATER ANALYSIS USING A PHOTOELECTROCHEMICAL METHOD - A method of determining chemical oxygen demand in water samples containing chloride ions above 0.5 mM concentration in which the samples are diluted and a known quantity of an organic substance is added to the diluted sample which is the subjected to an assay by a photoelectrochemical method using a titanium dioxide nanoparticulate semiconductor electrode and measuring the photo current produced until a stable value is reached and then using the difference between the initial and stable photocurrents as a measure of the chemical oxygen demand. An alternative method involves determining chemical oxygen demand in water samples containing chloride ions by measuring the chlorine content and measuring chemical oxygen demand by a photoelectrochemical method using a titanium dioxide nanoparticulate semiconductor electrode and adjusting the chemical oxygen demand measurement using the chlorine measurement. | 11-19-2009 |
| 20120000794 | ONLINE WATER ANALYSIS - A method of determining chemical oxygen demand (COD) of a water sample, which is useful in an on-line configuration comprising the steps of a) applying a constant potential bias to a photoelectrochemical cell, having a photoactive working electrode, optionally a reference electrode and a counter electrode, and containing a supporting electrolyte solution; b) illuminating the working electrode with a light source and recording the background photocurrent produced at the working electrode from the supporting electrolyte solution; c) adding a water sample, to be analysed, to the photoelectrochemical cell; d) illuminating the working electrode with a light source and recording the hydro dynamic photocurrent produced under continuous flow of the water to be analysed; e) determining the chemical oxygen demand of the water sample using a number of different formulae. The applied potential is preferably from −0.4 to +O.8V more preferably about +0.3V. The method is applicable to water samples in the pH range of 2 to 10. An injection volume of 13 μL is preferred. A preferred flow rate is 0.3 mL/min. | 01-05-2012 |
| 20140001057 | KARL FISCHER TITRATOR AND KARL FISCHER TITRATION METHOD | 01-02-2014 |
| 20150362452 | METHOD OF MEASURING AND MONITORING CONDUCTIVITY IN-SITU IN HIGH TEMPERATURE AQUEOUS SYSTEMS - Monitoring of conductivity within a steam generating system may proceed in real time and without interruption of the steam generating system by use of a boron doped diamond based electrochemical band sensor placed within the steam generating system. The boron doped diamond based electrochemical band sensor has a diamond body and a plurality of boron doped diamond band electrodes disposed within the diamond body. At least a portion of each of the plurality of boron doped diamond band electrodes is doped with boron to provide metallic conduction. | 12-17-2015 |
| 20160161443 | GAS SENSOR, METHOD FOR MANUFACTURING GAS SENSOR, AND METHOD FOR DETECTING GAS CONCENTRATION - A humidity sensor that includes a p-type semiconductor layer and an n-type semiconductor layer on the p-type semiconductor layer. The p-type semiconductor layer is a sintered body made mainly of a solid solution of NiO and ZnO, and the n-type semiconductor layer is made mainly of at least one of ZnO and TiO | 06-09-2016 |
| 20160187286 | APPARATUS AND ASSOCIATED METHODS FOR ANALYTE DETECTION - An apparatus comprising first and second electrodes ( | 06-30-2016 |
