Process for producing -l-aspartyl-l-phenylalanine methyl ester having an improved solubility
CA 1319787 C · Owner: Harada, Tsuneo · Inventors: Tokuda, Akira; Irino, Shigeaki; Harada, Tsuneo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for producing dry .alpha.-L-aspartyl-Lphenylalanine methyl ester having an improved solubility by drying wet crystals of .alpha.L-aspartyl-L-phenylalanine methyl ester, characterized in that the wet crystals of .alpha.-L-aspartyl-L-phenylalanine methyl ester are granulated so that the specific surface area during the drying operation is at least 4 m2/g, followed by drying.
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 June 29, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 29, 2010.
- 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.