Methods of producing membrane vesicles
CA 2407225 A1 · Owner: Ruegg, Curtis · Inventors: Lamparski, Henry; Hsu, Di-Hwei; Le Pecq, Jean-Bernard
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to methods of preparing biological material for , use in various experimental, diagnostic or therapeutic uses including , immunotherapy treatment or prophylaxy of tumors. More particularly the , present invention relates to methods of preparing membrane vesicles (in particular exosomes) released by various types of mammalian cells comprising , diafiltration and/or density cushion centrifugation. The invention also provides novel methods for characterizing and analyzing exosome preparations which can be used in quality control assay for the purpose of pharmaceutical product production. The invention is suitable to produce pharmaceutical grade preparations of …
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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 11, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 11, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 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.