Local drug delivery using photosensitizer-mediated and electromagnetic radiation-enhanced vascular permeability
CA 2397333 A1 · Owner: Hill, John S. · Inventors: Walker, Jeffrey P.; Hill, John S.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to the site specific delivery of drugs in an organism. The described methods facilitate the delivery of a therapeutic or diagnostic drug by increasing vascular permeability in a site specific manner. Vascular permeability is enhanced in the disclosed methods by using a combination of a photosensitizer and radiation applied to a site of interest.
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 January 22, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 22, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 22, 2023.
- 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.