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Expired Canadian patentCanada

Preparation of stable crude oil transport emulsions

CA 1291002 C · Owner: Riley, Christopher J. · Inventors: Olah, Andrew M.; Gregoli, Armand A.; Rimmer, Daniel P.

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Abstract From the Canadian patent

A process for the production of an oil-in-water emulsion for pipeline transmission. The process comprises producing a hydrocarbon crude, and mixing the produced hydrocarbon crude with an emulsifying composition(s) which contains water and is capable of assisting the formation of an oil-in-water emulsion when the temperature of the mixture of produced hydrocarbon crude and emulsifying composition(s) is from about 100°F to about 200°F. The amount of the emulsifying composition(s) that is mixed with the produced hydrocarbon crude is sufficient to form an oil-inwater emulsion having water content of from about 15 percent to about 60 percent by weight water and a viscosity sufficiently low for …

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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

  • Granted October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 19, 1987
GrantedOctober 22, 1991
Term endedOctober 22, 2008
Patent numberCA 1291002 C
Classification (IPC)B01F17/42 +2 more

Timeline

Timeline From CIPO dates

1988199119941997200020032006Application filedFeb 19, 1987Patent grantedOct 22, 1991Term endedOct 22, 2008

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