Method for production of cystine from cysteine
CA 1291159 C · Owner: Nitta, Kazunari · Inventors: Nitta, Kazunari; Hashimukai, Tadashi; Miyahara, Tooru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, This invention relates to a method for the production of cystine from cysteine. Commercially viable prior art methods result in low yields unless a catalyst is used. In this invention, any aqueous solution containing cysteine, obtained by the enzymatic method or fermentation method, is oxidised in the presence of dimethyl sulfoxide to produce cystine in high yields.
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
- Granted October 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 22, 2008.
- 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.