Patent Yard Sign in
Expired Canadian patentCanada

Oxidation of methane over heterogeneous catalysts

CA 1269675 C · Owner: Wade, Steven Ronald · Inventors: Wade, Steven Ronald; Brophy, John Howard

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Oxidation of methane over heterogeneous catalysts Higher hydrocarbons are produced from methane by reacting the methane at elevated temperature, suitably in the range from 600 to 800°C, with an oxygen-containing gas having a ratio of methane to oxygen of greater than the stoichiometric ratio for complete combustion in the presence as catalyst of a lithium-doped material which under the reaction conditions is a physically base-stable non-melting, oxygen-stable compound of an element of Groups III to VIII of the Periodic Table of the Elements including the rare earth elements.

Read the whole patent

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 May 29, 1990. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 29, 2007.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 6, 1987
GrantedMay 29, 1990
Term endedMay 29, 2007
Patent numberCA 1269675 C
Classification (IPC)C07C2/84 +2 more

Timeline

Timeline From CIPO dates

1988199019921994199619982000200220042006Application filedJan 6, 1987Patent grantedMay 29, 1990Term endedMay 29, 2007

Sources & verification

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