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Expired Canadian patentCanada

Method for improving liquid yield during thermal cracking of hydrocarbons

CA 2559151 C · Owner: Baker Hughes Incorporated · Inventors: Falkler, Thomas; Stark, Joseph

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Abstract From the Canadian patent

Metal additives to hydrocarbon feed streams give improved hydrocarbon liquid yield during thermal cracking thereof. Suitable additives include metal overbases and metal dispersions and the metals suitable include but are not , necessarily limited to, magnesium calcium, aluminum, zinc, silicon, barium cerium, and strontium overbases and dispersions. Coker feedstocks are a particular hydrocarbon feed stream to which the method can be advantageously applied, but the technique may be used on any hydrocarbon feed that is thermally cracked.

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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 7, 2005 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 7, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • 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 7, 2005
GrantedDecember 18, 2012
Term endedMarch 7, 2025
Patent numberCA 2559151 C
Classification (IPC)C10G9/00 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 7, 2005Patent grantedDec 18, 2012Term endedMarch 7, 2025

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