Magnetic nanoparticles having biochemical activity, method for the production thereof and their use
CA 2384429 A1 · Owner: Clement, Joachim · Inventors: Hoffken, Klaus; Wagner, Kerstin; Vogt, Sebastian
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to magnetic nanoparticles to the production thereof and , to their use. The aim of the invention is to prepare nanoparticles which also , in the intracellular area of cells can specifically bond to intracellular biomacromolecules so that a separation is made possible by the action of an external magnetic field. This is achieved by using magnetic nanoparticles which have a biochemical activity and which are comprised of a magnetic nuclear particle and of a shell layer that is fixed to the nuclear particle. The nanoparticles contain a compound of general formula M - S - L - Z (I) whereby the binding sites between S and L and L and Z have covalently bound functional …
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 September 14, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 14, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 14, 2022.
- 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.