Method and device for concentrating and stabilizing conjugated estrogens from mares' urine
CA 2410654 C · Owner: Ahnsorge, Jurgen · Inventors: Ahnsorge, Jurgen; Ban, Ivan; Rasche, Heinz-Helmer
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 method and a device for concentrating and stabilising conjugated oestrogens from the urine of pregnant mares on solid supports in order to obtain a suitable starting material for producing pharmaceuticals that contain the natural mixture of these conjugated oestrogens as the active component. The inventive device is characterised by its suitability for practical, decentralised concentration and stabilisation of mixtures of conjugated oestrogens (CE) contained in the urine (PMU) of pregnant mares on a solid support (= adsorbent) especially in the proximity , of the stable or field in a column or a cartridge. The adsorber columns can be filled directly at …
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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
- Filed July 26, 2001 and granted September 20, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 26, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 26, 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.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.