Pyruvate derivatives
CA 2446136 C · Owner: Monsanto Technology Llc · Inventors: Wang, Bing; Flaim, Stephen F.; Song, Jingao
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Certain known and novel pyruvate derivatives are particularly active in restoring or preserving metabolic integrity in oxidatively competent cells that have been subjected to oxygen deprivation. These pyruvate-derived compounds include, but are not limited to oximes amides, pyruvate analogues, modified pyruvate analogues esters of pyruvate (e.g. polyol-pyruvate esters pyruvate thioesters, glycerol-pyruvate esters and dihydroxyacetone-pyruvate esters). Such pyruvate derivatives (including single tautomers single , stereoisomers and mixtures of tautomers and/or stereoisomers and the , pharmaceutically acceptable salts thereof) are useful in the manufacture of pharmaceutical compositions …
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 May 3, 2002 and granted July 5, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 3, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 3, 2024.
- 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.