The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 10, 1992
Filed:
Apr. 26, 1989
Applicant:
Inventors:
George Allen, San Diego, CA (US);
Henry K Hui, Laguna Niguel, CA (US);
Amos Gottlieb, San Francisco, CA (US);
Assignee:
FOxS Labs, Carlsbad, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436172 ; 422 8207 ; 422-208 ; 422 86 ; 436 68 ; 436136 ; 436138 ; 436178 ;
Abstract
The analyte sensing system utilizes a sensor indicator which may be a perlyene derivative, coronene, or naphtho [8,1,2-abc] coronene in an analyte permeable silicone matrix. The matrix is irradiated with light of a specific wavelength, and fluorescence emissions of the dye indicator is measured over two different emission spectra having different sensitivities to the analyte. The emission spectrum which is less sensitive to quenching by the analyte can be used as a reference for determining the analyte concentration based upon a ratio of the intensities of the different emission spectra.