Method of producing an antithrombin iii-heparin concentrate or an antithrombin iii-heparinoid concentrate
CA 1211371 A · Owner: Immuno Aktiengesellschaft Fur Chemisch-Medizinische Produkte · Inventors: Eibl, Johann; Hetzl, Ernst; Linnau, Yendra
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In a method of producing an antithrombin III-heparin or an antithrombin III-heparinoid concentrate heparin, or heparinoid is added to human plasma or to antithrombin III containing plasma fractions to form an antithrombin III-heparin or antithrombin III-heparinoid complex, the complex thus formed is adsorbed on an anion exchanger, and eluted with a salt solution; then the antithrombin III-heparin or antithrombin III-heparinoid complex contained in the eluate is separated from salts and undesired proteins, and the resulting product is loyphilized.
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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
- Granted September 16, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 16, 2003.
- 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
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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.