Nociceptin analogs
CA 2444108 C · Owner: Whitehead, John · Inventors: Chen, Zhengming; Goehring, Richard R.; Gharagozloo, Parviz
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to compounds of formula (I) and compounds of formula (II): , (see formula II), and pharmaceutically acceptable salts prodrugs, or solvates thereof, wherein R1, R2, A, B, E, W, Z, n, and m are defined as set forth in the specification. The compounds of the , invention have affinity for the nociceptin receptor. The invention is also directed to the , use of compounds of Formula (I) and Formula (II) to treat a disorder responsive to , modulation of the nociceptin receptor. Compounds of the present invention are especially , useful for treating pain.
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 April 18, 2002 and granted July 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 18, 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.