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Expired Canadian patentCanada

Steam conversion process and catalyst

CA 2233699 C · Owner: Pereira, Pedro · Inventors: Marino, Marian; Carrazza, Jose; Zacarias, Luis

CIPO record

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Abstract From the Canadian patent

A process for steam conversion of a hydrocarbon feedstock in the presence of a catalyst includes the steps of (a) providing a catalytic emulsion comprising a water in oil emulsion containing a first alkali metal and a second metal selected from the group consisting of Group VIII non-noble metals, alkaline earth metals and mixtures thereof; (b) mixing the catalytic emulsion with a hydrocarbon feedstock to provide a reaction mixture; and (c) subjecting the reaction mixture to steam conversion conditions so as to provide an upgraded hydrocarbon product. A catalytic emulsion and process for preparing same are also provided.

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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 1, 1998 and granted July 31, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 1, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 1, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 1, 1998
GrantedJuly 31, 2001
Term endedApril 1, 2018
Patent numberCA 2233699 C
Classification (IPC)B01J23/78 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedApril 1, 1998Patent grantedJuly 31, 2001Term endedApril 1, 2018

Sources & verification

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