Treatment device for topical photodynamic therapy and method of making same
CA 2302044 C · Owner: Advanced Photodynamic Technologies, Inc. · Inventors: Biel, Merrill A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a light emitting treatment device (10 20, 30) , including one or more light members which are configured to emit energy for photodynamic therapy of a body surface. The treatment device (10 20, 30) is , made of a polymeric material configured to conform to a body surface. The light members may be disposed in a substantially uniform array and be , configured to emit energy in a substantially uniform pattern. The light emitting treatment device (10, 20, 30) may further include a heat dissipating layer, a layer of gold or gold alloy, or a layer of adhesive disposed on at least one of the one or more surfaces of the shell or liner. Methods of making, and using the …
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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 August 25, 1998 and granted July 5, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 25, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 25, 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.