Optical sensors with reflective materials and methods for producing such optical sensors
CA 2318948 A1 · Owner: Sullivan, Kevin J. · Inventors: Collins, Thomas C.; Slovacek, Rudolf E.; Cudmore, Susan L.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Provided is an optical sensor including a support and a detection layer wherein the detection layer includes: (a) a luminescent material wherein the luminescence intensity of the luminescent material varies as the amount of an analyte varies; (b) a reflective material having a highly efficient reflectance of the wavelengths of excitation and of emission of the luminescent material; and (c) a polymeric binder to support and hold together the luminescent material and the reflective material. Such an optical sensor can be advantageously used in the detection of gaseous ionic, and nonionic , analytes in highly scattering samples. Also provided are methods for the manufacture of such …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 18, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 18, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2021.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
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Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.