Cation/proton-conducting ceramic membrane based on a hydroxysilyl acid, its production and use
CA 2431055 A1 · Owner: Creavis Gesellschaft Fur Technologie Und Innovation Mbh · Inventors: Horpel, Gerhard; Hying, Christian; Hennige, Volker
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 cation-conducting or proton-conducting ceramic membrane, a method for the production thereof and the use of the same. The inventive membrane represents a novel category of solid proton-conducting membranes, and is based on a porous and flexible ceramic membrane described in patent application PCT/EP98/05939. Said membrane is infiltrated by a protonconducting substance, and is then dried and consolidated in such away that the end result is an impermeable, cation-conducting or proton-conducting membrane. The proton-conducting substance is a hydroxysilylsulfonic acid or a hydroxysilylphosphonic acid which is integrated into an inorganic network e.g. SiO2. The …
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 October 27, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 27, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 27, 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.