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Canadian application, no grantCanada

Hydrogenolytic reduction of peroxidic ozonolysis products

CA 2118839 A1 · Owner: Chemie Linz Gesellschaft M.B.H. · Inventors: Winetzhammer, Willibald; Pollhammer, Stefan; Schaller, Josef

CIPO record

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

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Abstract From the Canadian patent

A method for the hydrogenolytic reduction of peroxidic ozonolysis products to the corresponding carbonyl compounds in the presence of an inert organic diluting agent and in the presence of a monolith catalyst at hydrogen pressures of 0.01 to 2.0 MPa and at temperatures of -10 to 150 °C and a device, for the catalytic hydrogenolysis of chemical compounds which yield uniform, new products by means of hydrogenolysis with hydrogen.

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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 11, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended March 11, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 11, 2016.
  • 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 11, 1994
GrantedNo grant recorded
Term endedMarch 11, 2014
Patent numberCA 2118839 A1
Classification (IPC)C07C45/40 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedMarch 11, 1994Term endedMarch 11, 2014

Sources & verification

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