Intracellular and extracellular decontamination of whole blood and blood components by amphiphilic phenothiazin-5-ium dyes plus light
CA 2278245 A1 · Owner: Wagner, Stephen J. · Inventors: Cincotta, Louis; Wagner, Stephen J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention is directed to a method for inactivating pathogenic contaminants, such as viruses, bacteria parasites and leukocytes, frequently , found in whole blood or blood components such as red blood cells or plasma, which comprises treating whole blood or blood components with an amphiphilic phenothiazin-5-ium dye and light. Preferred amphiphilic phenothiazin-5-ium dyes are those having formula (I) wherein each of R1 R1', R2, and R2' is , independently selected from the group consisting of an alkyl group an alkenyl , group, an alkynyl group, a nitrile an aralkyl group, a hydroxy group, an alkoxy group, an amine group, and a hydrogen atom each of R3, R3', R4, R4', R5 and R5' is …
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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 January 21, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 21, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 21, 2020.
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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.