Hydroprocessing fcc naphthas
CA 2398941 A1 · Owner: Exxonmobil Research And Engineering Company · Inventors: Baird, William Chalmers Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The hydrodesulfurization of a hydrocarbon feedstock contains an olefinic component achieved with increased selectivity for hydrodesulfurization by contacting the feedstock and hydrogen under hydrodesulfurization conditions with a sulfided catalyst comprising: (i) at least one non-noble metal of Group VIII; (ii) at least one metal of Group VIB; and (iii) at least one metal of Group IB, IIB and IVA, on an inorganic oxide support.
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 February 21, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 21, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 21, 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.