Skin wrinkle reduction using pulsed light
CA 2364104 A1 · Owner: Clement, Robert Marc · Inventors: Kiernan, Michael Noel; Clement, Robert Marc
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Wrinkles are cosmetically removed from a superficial area of mammalian skin tissue having an epidermal layer, a basal layer and a dermal layer, by , irradiating the dermal layer through the basal layer the irradiation having , an energy density in the range 5J/cm2 or less and being selected to be , absorbed by a chromophore in the dermal layer such that collagen present in the dermal layer is heated, while the basal layer remains intact so as to substantially inhibit contact of the dermal layer with ambient air.
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 March 3, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 3, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 3, 2022.
- 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.