Quantitative analysis of a turbid pharmaceutical sample by irradiation of the sample
CA 2442275 C · Owner: Johansson, Jonas · Inventors: Abrahamsson, Christoffer; Andersson-Engels, Stefan; Svanberg, Sune
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to apparatuses for use in performing a quantitative analysis of a turbid pharmaceutical sample e.g. a tablet, a , capsule or a similar sample forming a pharmaceutical dose. A pharmaceutical turbid sample (24, 57, 67) is irradiated with an excitation beam (20 53, 64) , of radiation, e.g. near infrared radiation. The intensity of emitted radiation (30) from the sample (24, 57, 67) is detected as function of both the wavelength of the emitted radiation and the photon propagation time through said sample (24, 57, 67). Optionally, the intensity of the emitted radiation (30) from the sample (24, 57, 67) is also detected in a spatially resolved manner.
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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 March 18, 2002 and granted January 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 2024.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.