Process of producing l-tryptophan
CA 1311705 C · Owner: Iguchi, Seiya · Inventors: Ogawa, Shinji; Iguchi, Seiya; Morita, Satoshi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A continuous process is provided for producing L-tryptophan from L-serine and indole using an immobilized enzyme source. In such process, the number of moles of L-serine in the reaction mixture is greater than the total of the number of moles of indole and L-tryptophan.
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 December 22, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 22, 2009.
- 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.