Microfluidization of calcium/oxyanion-containing particles
CA 2187749 A1 · Owner: Cacheris, William P. · Inventors: Cacheris, William P.; Meeh, Linda
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods of preparing solid apatite particles using a microfluidizer for use , in medical diagnostic imaging such as magnetic resonance imaging X-ray, and , ultrasound. The desired apatite particles are synthesized passed through a , microfluidizer, and purified to remove excess base salts, and other materials , used to synthesize the particles. The microfluidizer causes two high pressure streams to interact at ultra high velocities in a precisely defined microchannel. Microfluidization of preparations causes small ( 5µm) and uniform particles to be formed. Coating and purifying (especially by tangential flow filtration) the particles improves particle stability.
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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, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 11, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 11, 2016.
- 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.