Method for the production of phenylalanine ammonia- lyase by fermentation
CA 1237688 A · Owner: Genex Corporation · Inventors: Finkelman, Malcolm A.J.; Yang, Huei-Hsuing
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure A method for the production of the enzyme phenylalanine ammonia-lyase (PAL), by fermentation wherein, the stability and useful life of the enzyme are improved by maintaining PAL-containing media in substantially anaerobic, static conditions. PAL is useful for catalyzing the conversion of t-cinnamic acid and ammonia to Lphenylalanine.
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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
- Granted June 7, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 7, 2005.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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.