Patent application number | Description | Published |
20090053448 | Protective Films and Related Methods - The invention features protective film constructions that may be used, for example, as a protective floor finish. | 02-26-2009 |
20110031983 | ORGANIC CHEMICAL SENSOR COMPRISING PLASMA-DEPOSITED MICROPOROUS LAYER, AND METHOD OF MAKING AND USING - Applicant discloses a sensing element for sensing an organic chemical analyte, comprising a first electrode and a second electrode, and a microporous, hydrophobic, analyte-responsive dielectric material disposed at least in proximity to the first and second electrodes. The analyte-responsive dielectric material may be an amorphous random covalent network comprising a mean pore size of less than about 10 nm and a porosity of at least about 20%. An electrical property of the sensing element, such as capacitance, can be monitored in order to sense an organic chemical analyte. | 02-10-2011 |
20110045601 | ORGANIC CHEMICAL SENSOR COMPRISING MICROPOROUS POLYMER, AND METHOD OF USE - Applicant discloses a sensing element for sensing an organic chemical analyte, comprising a first electrode and a second electrode, and a microporous, hydrophobic, analyte-responsive dielectric material disposed at least in proximity to the first and second electrodes. The analyte-responsive dielectric material may be a polymer of intrinsic microporosity. An electrical property of the sensing element, such as capacitance, can be monitored in order to sense an organic chemical analyte. | 02-24-2011 |
20110254568 | ORGANIC CHEMICAL SENSOR WITH MICROPOROUS ORGANISILICATE MATERIAL - Sensing elements for sensing organic chemical analytes are disclosed. The sensing elements include a first electrode and a second electrode, and a substantially microporous, amorphous, hydrophobic, analyte-responsive organosilicate material in proximity to the first and second electrodes. | 10-20-2011 |
20130088244 | VARIABLE CAPACITANCE SENSORS AND METHODS OF MAKING THE SAME - A variable capacitance sensor includes a first conductive electrode comprising electrically interconnected first conductive sheets; a second conductive electrode comprising electrically interconnected second conductive sheets, wherein the first conductive sheets are at least partially interleaved with the second conductive sheets, and wherein the second conductive electrode is electrically insulated from the first conductive electrode; and microporous dielectric material at least partially disposed between and contacting the first conductive sheets and the second conductive sheets. A method of making a variable capacitance sensor by replacing ceramic in a ceramic capacitor with a microporous material is also disclosed. | 04-11-2013 |
20130186177 | Sensor Element, Method of Making the Same, and Sensor Device Including the Same - A sensor element ( | 07-25-2013 |
20130229194 | Sensor Element, Method of Making the Same, and Sensor Device Including the Same - A sensor element includes a first conductive electrode having a first conductive member electrically coupled thereto; an absorptive dielectric layer comprising a polymer of intrinsic microporosity; and a second conductive electrode having a second conductive member electrically coupled thereto. The second conductive electrode comprises at least one noble metal, has a thickness of from 4 to 10 nanometers and is permeable to at least one organic vapor. The absorptive dielectric layer is at least partially disposed between the first conductive electrode and the second conductive electrode. A method of making the sensor element, and sensor device containing it, are also disclosed. | 09-05-2013 |
20130239813 | PORTABLE MONITOR FOR END OF SERVICE LIFE INDICATION - Devices for monitoring the end of service life of a filter cartridge include a demand substance, a sensing element with a detection point located within or adjacent to the demand substance, a reader for the sensing element, and a fluid delivery device. The detection point of the sensing element is correlated to the service life of a filter cartridge. The correlation is effected by correlation of the residence time of the monitoring device to the residence time of a filter cartridge. The residence time of the monitoring device is correlated to the residence time of the filter cartridge by control of the fluid delivery parameters of the fluid delivery device. The fluid delivery parameters include the flow rate, the demand substance mass, the receptacle cross sectional area, the receptacle volume, the receptacle length, and the demand substance packing density of the monitoring device. | 09-19-2013 |
20130263640 | METHOD FOR CORRELATING A MONITORING DEVICE TO THE END OF SERVICE LIFE OF A FILTER CARTRIDGE - Methods of correlating a monitoring device to the service life of a filter cartridge include providing a monitoring device, and calibrating the monitoring device to correspond to the service life of a filter cartridge. The monitoring device comprises a demand substance within a receptacle, a sensing element with a detection point, a reader for the sensing element, and a fluid delivery device. Calibration includes determining the ratio of the residence time of the monitoring device to the residence time of the filter cartridge, and utilizing the ratio to correlate the response of the sensor within the monitoring device to the service life of the filter cartridge. The response of the sensor is correlated to the service life of the filter cartridge by control of the fluid delivery parameters of the fluid delivery device. The fluid delivery parameters include the flow rate, the demand substance mass, the receptacle cross sectional area, the receptacle volume, the receptacle length, and the demand substance packing density. | 10-10-2013 |
20140021967 | METHOD OF DETECTING VOLATILE ORGANIC COMPOUNDS - A method of using a sensor element includes: exposing a sensor element to an unknown analyte vapor; measuring a capacitance of the sensor element to obtain a measured capacitance; obtaining a true capacitance of the sensor element; exposing the semi-reflective conductive electrode to incident light and observing reflected light in order to measure a spectral change between the incident light and the reflected light; comparing the true capacitance and the measured spectral change, or at least one derivative thereof, to a reference library, the reference library comprising reference correlations between spectral change and true capacitance, or at least one derivative thereof, for a plurality of reference analyte vapors; and determining at least one of the chemical class or identity of the analyte vapor. | 01-23-2014 |
20140025326 | ELECTRONIC DEVICE INCLUDING CALIBRATION INFORMATION AND METHOD OF USING THE SAME - Methods of generating a reference correlation for use with an absorptive capacitance vapor sensor and calibration of the absorptive capacitance vapor sensor. An electronic article including the reference correlation and methods of using the same are also disclosed. | 01-23-2014 |
20140028333 | VAPOR SENSOR INCLUDING SENSOR ELEMENT WITH INTEGRAL HEATING - A vapor sensor includes a capacitance-related property sensor element ( | 01-30-2014 |
20140076048 | Humidity Sensor and Sensor Element Therefor - A humidity sensor element includes a dielectric substrate, a nonporous conductive electrode disposed on the dielectric substrate, a permeable conductive electrode having a thickness in a range of from 4 to 10 nanometers and permeable by water vapor, and a detection layer sandwiched between the nonporous conductive electrode and the permeable conductive electrode. The permeable conductive electrode is parallel to the nonporous electrode. Both conductive electrodes have respective conductive leads attached thereto. The detection layer includes a copolymer having monomeric units comprising wherein M represents H, or an alkali metal. A humidity sensor including the humidity sensor element is also disclosed. | 03-20-2014 |
20140309947 | Method for Identification and Quantitative Determination of an Unknown Organic Compound in a Gaseous Medium - A method for identifying and quantitatively analyzing an unknown organic compound in a gaseous medium. More specifically, the method provides a gas sensor array ( | 10-16-2014 |