Biosensor
Patent 4950378 Issued on August 21, 1990. Estimated Expiration Date: 
July 6, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
July 6, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesPolarographic sensor Method for urea analysis Method of operating a self cleaning electrochemical detector Apparatus for deplating cutaneous gas sensors Antifouling electrochemical gas sensor Patent #: 4772375 InventorAssigneeApplicationNo. 215804 filed on 07/06/1988US Classes:204/402, Regeneration or activation204/403.11, Glucose oxidase204/406, With significant electrical circuitry or nominal computer device204/412, Three or more electrodes204/415Selectively permeable membraneExaminersPrimary: Tung, T.Attorney, Agent or FirmForeign Patent References
International ClassG01N 027/327Foreign Application Priority Data1987-07-17 JPAbstractAn electrode refreshing arrangement of a biosensor includes a constant reverse bias voltage arranged to be supplied between a working electrode and a reference electrode, so as to thereby refresh the working electrode, that is, to remove the disturbance film or substance formed on the surface of the working electrode as a result of the enzyme reaction, thus reviving the activity of the working electrode. |
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