Combined electroporation and iontophoresis apparatus for drug and gene delivery
CA 2311474 C · Owner: Hofmann, Gunter A. · Inventors: Hofmann, Gunter A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An apparatus for transdermal molecular delivery comprises a first electrode , assembly having an anode and a cathode in closely spaced relation for engaging the stratum corneum through which to apply an electric field first power , supply including a first circuit connected to the first electrode assembly for applying a pulsed electric field of sufficient amplitude to induce pores in the stratum corneum, a second electrode assembly spaced from the first electrode assembly and comprising at least one of an anode and a cathode second power supply including a second circuit connected to the first electrode assembly and the second electrode assembly for applying a low voltage continuous …
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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 April 2, 1998 and granted October 2, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2020.
- 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.