D-tagatose production by enzymatic isomerization of d-galactose
CA 2086912 A1 · Owner: Spradlin, Joseph E. · Inventors: Spradlin, Joseph E.; Ibrahim, Osama O.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
D-TAGATOSE PRODUCTION BY ENZYMATIC, ISOMERIZATION OF D-GALACTOSE ABSTRACT OF THE DISCLOSURE, D-tagatose is produced by enzymatic isomerization of Dgalactose using L-arabinose isomerase. The D-tagatose produced can be used as a reduced calorie food sweetening and bulking agent, as an intermediate for the synthesis of optically active compounds and as an additive in detergent cosmetic and, pharmaceutical formulations.
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 January 7, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2015.
- 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.