Methanol-steam reformer
CA 2428548 C · Owner: Her Majesty The Queen In Right Of Canada As Represented By The Minister Of National Defence Of Her Majesty'S Canadian Government · Inventors: Peppley, Brant A.; Wieland, Helmut; Wheeldon, Ian R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hydrogen is produced in a compact methanol-steam reformer which integrates an inner cylindrical heating chamber; and a reactant vaporizer and heating zone and an outer Cu/ZnO/AI2O3 catalyst bed in concentric annuli around the heating chamber. Tubular palladium-silver alloy membranes in the catalyst bed separate hydrogen from retentate gas which is separately discharged from the apparatus through a manifold.
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
- Filed May 13, 2003 and granted May 10, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 13, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 13, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.