Amino acid prodrugs
CA 2534342 C · Owner: Chandran, V. Ravi · Inventors: Chandran, V. Ravi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a prodrug comprised of an amino acid bonded to a medicament or drug having a hydroxy amino, carboxy or acylating , derivative thereon. The prodrug has the same utility as the drug from which it is made, but it has enhanced therapeutic properties. In fact the prodrugs of , the present invention enhance at least two therapeutic qualities as defined , herein. The present invention is also directed to pharmaceutical compositions containing same.
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 July 29, 2004 and granted May 10, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 29, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 29, 2026.
- 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.