Metal compound microparticles and ultra-microparticle powders
CA 2451905 A1 · Owner: Huang, Fukuo · Inventors: Huang, Fukuo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a process for manufacturing metal compound microparticles or ultra-micropartical powders by the flame crystallization process. The process includes sufficiently mixing the ions or precursors of metal salts or metal compounds with organic solvents and flaming the mixed , solution, to obtain the metal compound microparticles and ultra-microparticles through co-inflaming. The organo-metal salts may be a mixture of two or more kinds of organo-metallic salts. The growth rate and particle size of the microparticle can be controlled by adjusting the concentration of the mixed solution of the precursors and organic solvents. The obtained metal compound …
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 January 18, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 18, 2024.
- 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.