In vivo method for measuring binding of chemical actives to skin or specific constituents of skin
CA 2442659 A1 · Owner: Ananthapadmanabhan, Kavssery Parameswaran · Inventors: Ananthapadmanabhan, Kavssery Parameswaran; Subramanyan, Krishna Kumar; Leeson, Daniel Thorn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An in vivo method for measuring the binding of chemical compounds or mixtures of compounds to skin constituents comprising: (a) choosing a desired site of any desired size on a subject's body; (b) exposing said site the binding of , which is to be measured to the chemical compound or mixture of compounds by any desirable method; (c) applying a luminescent or optically absorbing probe/marker to the area that was exposed to the chemical compound or compounds; (d) measuring the luminescence or absorbance spectrum of the probe/marker on skin; and (e) determining the binding of the chemical compound or compounds the body site was exposed to from the luminescence or absorbance spectrum.
Read the whole patent
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 April 23, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 23, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 23, 2024.
- 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
Timeline From CIPO dates
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.