Direct methanol feed fuel cell and system
CA 2240019 C · Owner: Halpert, Gerald · Inventors: Surampudi, Subbarao; Jeffries-Nakamura, Barbara; Kindler, Andrew
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Improvements to non-acid fuel methanol fuel cells (10) include new formulations for the materials used therein. The anode (14) includes platinum and rithenium uniformly mixed together. Other materials may be substituted for these metals. The cathode (16) is made of platinum particles and is bonded to , a side of the solid polymer electrolyte membrane (18). The backing material for the fuel electrode is treated to improve its characteristics. An extremely porous electrode made by sputtering is also disclosed.
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 December 9, 1996 and granted March 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 9, 2018.
- 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.