Thrombin preparations and process for their production
CA 2735316 C · Owner: Csl Behring Gmbh · Inventors: Schneider, Heinrich; Hubert, Metzer
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The production of a thrombin preparation which is obtained from prothrombin which is after activation to thrombin without the addition of thromboplastin purified by a hydrophobic interaction chromatography it being possible subsequently also to inactivate or remove viruses is described. Before or after the hydrophobic interaction chromatography it is also possible in addition to carry out a cation exchange chromatography. A thrombin preparation which contains as stabilizer a noncovalently binding inhibitor and to which further stabilizers can be added for stabilization in the liquid state is additionally described.
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 March 15, 2001 and granted April 28, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 15, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 15, 2023.
- 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.