Direct methanol fuel cell (dmfc)
CA 2259195 A1 · Owner: Waidhas, Manfred · Inventors: Luft, Gunter; Pantel, Kurt; Waidhas, Manfred
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a DMFC in which an evaporator (4) is provided upstream of the cell (5). The fuel, which is mainly a mixture of methanol and water possibly with an inert gas added, is of variable composition the respective , mixture of methanol/water and possibly inert gas being adjustable in dependence on the load. The invention also concerns a method of operating a DMFC plant wherein the fuel is present in gaseous form in the anode region.
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 June 25, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 25, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 25, 2019.
- 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.