Radioisotope-associated polymeric hydrogel microspheres and methods for producing and using the same
CA 2507404 A1 · Owner: Biosphere Medical · Inventors: Krom, James A.
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 polymeric materials that are labeled with colloidal metals, preferably colloidal gold to processes for producing the , labeled polymeric material and to methods of using the materials in prophylactic, therapeutic and cosmetic applications. Specifically the , invention relates to porous injectable and implantable microparticles preferably microspheres, that are associated with radioactive colloidal metals such that the microparticles are visible or detectable under regular light by , radiological and/or magnetic resonance imaging techniques or both. The , microparticles having radioactive colloidal metals are particularly useful for embolization, …
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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 October 17, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 17, 2025.
- 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.