Process for producing mixtures rich in 1,6-gps or 1,1-gpm
CA 2229410 C · Owner: Munir, Mohammad · Inventors: Kowalczyk, Jorg; Kunz, Markwart; Gander, Michael
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing phases enriched with 1,1-GPM (1-O-.alpha.-D-Glucopyranosyl-D-mannite) and/or 1,6-GPS (6-O-.alpha.-D- Glucopyranosyl-D-sorbite), from hydrogenated isomaltulose or mixtures containing hydrogenated isomaltulose. The latter is dissolved in water at an elevated temperature the resulting solution is crystallized by cooling the solution over a predetermined temperature range sufficient to obtain the desired phase composition and the phase, enriched with 1,1-GPM is subsequently separated from the phase enriched with 1,6-GPS.
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 February 13, 1998 and granted February 12, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 13, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 13, 2020.
- 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.