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Expired Canadian patentCanada

Method and apparatus for producing dry particles

CA 2478629 C · Owner: Jackson, Blair C. · Inventors: Blizzard, Charles D.; Chung, Marie Elizabeth; Mintzes, Jeffrey D.

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Abstract From the Canadian patent

Method and apparatus for producing dry particles. Two liquid components are combined in a static mixer (230, 630), atomized into droplets and the , droplets dried to form dry particles. Use of the static mixer (230 630) , enables incompatible liquid components to be rapidly and homogeneously combined. The present invention optimizes process conditions for increasing and controlling particle porosity. The present invention also allows for optimization of particle size in real-time during particle production.

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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 March 19, 2003 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 19, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 19, 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.
FiledMarch 19, 2003
GrantedJuly 16, 2013
Term endedMarch 19, 2023
Patent numberCA 2478629 C
Classification (IPC)A61K9/14 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedMarch 19, 2003Patent grantedJuly 16, 2013Term endedMarch 19, 2023

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.