Crystalline microporous oxide having increased lewis acidity and fluid catalytic cracking process using same
CA 2177293 C · Owner: Schweizer, Albert Edward · Inventors: Schuette, William Lee; Schweizer, Albert Edward
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a crystalline microporous oxide catalyst and fluid catalytic cracking process. The catalyst contains a compound for promoting dehydrogenation and increasing Lewis acidity is effectively added. This catalyst can be included in an inorganic oxide matrix and used as a cracking catalyst. Preferably the compound for promoting dehydrogenation and increasing Lewis acidity is effectively added to a non- framework portion of the crystalline microporous oxide. More preferably the compound for promoting dehydrogenation and increasing Lewis acidity is a volatile multivalent metal compound.
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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 May 24, 1996 and granted December 9, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 24, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 24, 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
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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.