Medicaments containing vardenafil hydrochloride trihydrate
CA 2805600 C · Owner: Bayer Intellectual Property Gmbh · Inventors: Bellinghausen, Rainer; Serno, Peter; Ohm, Andreas
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a storage-stable rapid-release vardenafil hydrochloride tablet , comprising vardenafil hydrochloride trihydrate and one or more suitable excipients, wherein , the vardenafil hydrochloride trihydrate content in the tablet is at least 90 mol% and the tablet , is uncoated.
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 3, 2003 and granted December 18, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 3, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 3, 2025.
- 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.