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Expired Canadian patentCanada

Method to deliver energy in a well system

CA 2801108 C · Owner: Smith, David R. · Inventors: Smith, David R.

CIPO record

Overview

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

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Abstract From the Canadian patent

The disclosure relates to an apparatus for insertion of a conduit into a well system bore to introduce a reactant fluid over a subterranean catalyst to initiate decomposition of the reactant fluid which resultant energy release may be utilized to perform work or perform heating of the subterranean environment. The reaction may be further accelerated by the addition of a fuel down into the reaction chamber or blended with the reactant fluid at a surface location. Reaction products can be jetted from a reaction chamber orifice against the proximal surface of the well system bore which may be either a production zone for the purpose of stimulating production or against a casing to perforate …

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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 December 9, 2005 and granted September 2, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 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.
FiledDecember 9, 2005
GrantedSeptember 2, 2014
Term endedDecember 9, 2025
Patent numberCA 2801108 C
Classification (IPC)E21B23/03

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 9, 2005Patent grantedSep 2, 2014Term endedDec 9, 2025

Sources & verification

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