Method for preparing catalysts for heterogeneous catalysis by multiple-phase impregnation, catalysts and use of said catalysts
CA 2491756 A1 · Owner: Pham-Huu, Cuong · Inventors: Ledoux, Marc J.; Nhut, Jean-Mario; Keller, Nicolas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a method for so-called two-phase impregnation of a .beta.-SiC support with high specific surface area said method comprising at least the following steps: (a) a first impregnating step which consists in impregnating at least once said support with a polar agent A (b) a second impregnating step which consists in impregnating at least once said support with at least an agent B less polar than agent A. Said method enables the production of novel catalysts for heterogeneous catalysis.
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 July 7, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 7, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 7, 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.