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| Number | Title | Issue Date |
| 6545495 | Method and apparatus for self-calibration of capacitive sensors A method for determining operational characteristics of capacitive sensors adapted for self-calibration includes the steps of providing at least one capacitive sensor having a suspended element and a pick-up plate. An AC input signal is applied to one of ... | 04/08/2003 |
| 6491797 | Methods of oxidizing organic contaminants in aqueous mediums using corona induced reactions A method for oxidizing an organic contaminant in an aqueous medium generates H2 O2 in the aqueous medium through the use of a corona discharge procedure. A quantity of hydroxyl radicals is generated from the H2 O2. | 12/10/2002 |
| 6344159 | Method for extruding pitch based foam A method and apparatus for extruding pitch based foam is disclosed. The method includes the steps of: forming a viscous pitch foam; passing the precursor through an extrusion tube; and subjecting the precursor in said extrusion tube to a temperature gradi... | 02/05/2002 |
| 6177283 | Diagnostic assay For blood or other physiological fluid sample collection kits that use filter paper to collect the sample, the performance of the kit and associated analytical method can be improved by using a material having properties which are superior to those of sta... | 01/23/2001 |
