Hydrophobic adsorbents and their use for the adsorption of lipoproteins
CA 2113063 A1 · Owner: Behringwerke Aktiengesellschaft · Inventors: Merle, Peter
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Hydrophobic adsorbents and their use for the adsorption of lipoproteins, Adsorbents composed of a polysaccharide support which is suitable for chromatography and is preferably based on agarose which has undergone a chemical reaction with the glycidyl ethers of nonionic polyoxyethylene detergents of the type HO-(CH2CH2O)n-O-R to give a compound of the formula I, (polysaccharide support) , (I) where n is an integer from 2 to 30 and R is an alkyl radical having 4-20 or a phenyl radical or a phenylalkyl radical, where the alkyl radical has 1-16 carbon atoms, to a process for their preparation and to their use for removing lipoproteins from human or animal body fluids are described.
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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 January 7, 1994. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 7, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2016.
- 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.