Method for modifying microparticles and device for modigying microparticles
CA 2506977 A1 · Owner: Voigt, Andreas · Inventors: Voigt, Andreas; Dahne, Lars
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a gradual coating method (LBL-technology®) with poloyelectrolytes of microparticles and nanoparticles in aqueous gels and gelatinous media, whereby regularly occurring flocculation and coagulation problems,which arise as a result of high collision frequency (Brownian movement and/or hydrodynamic collision) amongst the particles to be coated and as a result of heterocoagulation with the coating material can be avoided. , The coating compositions are conveyed to the particles which are to be coated by diffusion or by means of external forces of an electric magnetic, dielectrophoretic and hydrodynamic variety. According to the invention the , coated cores can be …
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 November 18, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 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.