Method for commercial preparation of conjugated linoleic acid from by-products of vegetable oil refining
CA 2471649 A1 · Owner: Her Majesty In Right Of Canada, As Represented By The Minister Of Agricu Lture And Agri-Food Canada · Inventors: Reaney, Martin J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Methods for quantitative conversion of soapstock lecithin gums, deodorizer , distillate and other by-products of vegetable oil refining containing interrupted double bond systems to products , with conjugated double bonds using a reduced amount, of alkali. Less than one mole of alkali per mole of acyl group present is required, thereby greatly reducing the need for added caustic compared with methods using oils, fatty acids and esters as starting materials. The preferred starting materials are soapstocks derived from vegetable oils rich in linoleic acid.
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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 October 10, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 10, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2024.
- 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.