Compositions for mitigating coke formation in thermal cracking furnaces
CA 2353377 A1 · Owner: Atofina Chemicals, Inc. · Inventors: Lindstrom, Michael J.
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 combination of compounds and a process using such combination useful for reducing or preventing coke formation in thermal cracking, furnaces such as ethylene steam crackers. The combination is comprised of one or, more compound of the formula R-S x-R' and one or more compound selected from the, following group:, (see formula I) (see formula II) and (see formula III)
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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 July 23, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 23, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 23, 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.