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Expired Canadian patentCanada

Control apparatus and control method for reformer

CA 2277671 C · Owner: Yamashita, Masashi · Inventors: Yamaoka, Masaaki; Motozono, Yoshikazu; Nagamiya, Kiyomi

CIPO record

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Abstract From the Canadian patent

A control apparatus can maintain a substantially constant temperature of a reforming reaction in which a partial oxidation reaction occurs. The control apparatus can be used for a reformer that reforms reformate fuel into fuel by an endothermic reforming reaction and a partial oxidation reforming reaction. The amount of oxygen supplied for the partial oxidation reaction is determined based on an amount of the raw material and on theoretical endothermic values and exothermic values of the respective reforming reaction and partial oxidation reaction.

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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 July 19, 1999 and granted June 10, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 19, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 19, 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.
FiledJuly 19, 1999
GrantedJune 10, 2003
Term endedJuly 19, 2019
Patent numberCA 2277671 C
Classification (IPC)C01B3/32 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedJuly 19, 1999Patent grantedJune 10, 2003Term endedJuly 19, 2019

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