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Expired Canadian patentCanada

Isoparaffin-olefin alkylation

CA 2092355 C · Owner: Conocophilips Company · Inventors: Randolph, Bruce B.; Abbott, Ronald Gordon

CIPO record

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

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Abstract From the Canadian patent

A novel alkylation catalyst is described which is used in processes for alkylating olefin hydrocarbons with isoparaffin hydrocarbons to produce high octane alkylate products suitable for use as blending components of gasoline motor fuel. The novel catalyst comprises a mixture of a hydrogen halide, a sulfone and water and has suitable corrosion properties which permit its utilization in alkylation process systems. The novel alkylation catalyst is utilized in a novel process for alkylating olefin hydrocarbons with isoparaffin hydrocarbons.

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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 24, 1993 and granted July 20, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 24, 2013.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 24, 2015.
  • 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 24, 1993
GrantedJuly 20, 1999
Term endedMarch 24, 2013
Patent numberCA 2092355 C
Classification (IPC)B01J27/08 +2 more

Timeline

Timeline From CIPO dates

1994199619982000200220042006200820102012Application filedMarch 24, 1993Patent grantedJuly 20, 1999Term endedMarch 24, 2013

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