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Expired Canadian patentCanada

Flash-pyrolysis in a cyclone

CA 2391146 C · Owner: Nederlandse Organisatie Voor Toegepast-Natuurwetenschappelijk Onderzoek Tno · Inventors: Brem, Gerrit

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The invention relates to a process for pyrolysis carried out in a cyclone reactor. More in detail the process relates to the pyrolysis of carbonaceous material carried out in a cyclone reactor which is fitted with enhanced filtering equipment. In addition the invention relates to the use of a cyclone fitted with a rotating filter as a pyrolysis reactor. By using a cyclone of the rotating separator type as a pyrolysis reactor, carbonaceous material, such as biomass can effectively , be converted in a product having excellent chemical properties and which product is free from particulate matter.

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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 November 11, 1999 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 11, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 11, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 11, 1999
GrantedMay 22, 2012
Term endedNovember 11, 2019
Patent numberCA 2391146 C
Classification (IPC)C10B49/12 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedNov 11, 1999Patent grantedMay 22, 2012Term endedNov 11, 2019

Sources & verification

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