Method for operating a pem fuel cell system, and an associated polymer electrolyte membrane (pem) fuel cell system
CA 2414591 A1 · Owner: Bruck, Rolf · Inventors: Konieczny, Jorg-Roman; Bruck, Rolf; Reizig, Meike
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a PEM fuel cell with a heating element a method for , operating a PEM fuel cell system and a PEM fuel cell system. Said heating element has an integrated thermosensor which, essentially, can prevent the , temperature of the cell/system from dropping below the freezing point of the electrolyte.
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 22, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 22, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 22, 2023.
- 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.