Method for measuring the cutaneous electric resistance of a patient subjected to transdermal administration of medicine
CA 2272870 A1 · Owner: Laboratoires D'Hygiene Et De Dietetique (L.H.D.) · Inventors: Millot, Philippe
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The intensity (I) of an electrophoresis current aiding the administration is temporarily adjusted to a predetermined value (Im) corresponding to a point of an original rectilinear part (OA) of the current/tension characteristic of the patient's skin, the voltage (Vpeau) then prevailing between two electrodes applying the electrophoresis current to the patient's skin is measured and the measurement (Rcut) of the cutaneous resistance is deduced from the measured voltage (Vpeau) and the predetermined value (Im) of the electrophoresis current.
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 November 18, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2019.
- 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.