Process for the enzymatic hydrolysis of a carboxylic acid derivative
CA 2065550 A1 · Owner: Dsm Chemie Linz Gmbh · Inventors: Banko, Gerald; Mayrhofer, Herbert; Buchner, Maria
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract, A process for the enzymatic hydrolysis of a carboxylic acid derivative by dissolving the carboxylic acid derivative in an organic solvent which is miscible with water only to a slight extent, saturation of the organic solution with water bringing the water-saturated organic solution into contact with a hydrolase, the hydrolysis taking place after which the, reaction solution is saturated with water again and brought into contact with the hydrolase and subsequently with water again until the desired degree of conversion is achieved.
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
- Filed April 7, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 7, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 7, 2014.
- 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.