Compounds and method for coating surfaces in a haemocompatible manner
CA 2484269 C · Owner: Hoffmann, Erika · Inventors: Hoffmann, Michael; Faust, Volker; Hoffmann, Erika
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to oligo- and polysaccharides containing the sugar structural element N-acylglucosamine or N-acylgalactosamine in addition to , the use thereof for producing haemocompatible surfaces and to methods for coating surfaces in a haemocompatible manner with said oligo- and polysaccharides, which constitute the common biosynthetic precursor substances of heparin, heparan sulphates and chitosan. The invention also relates to methods for producing the oligo- and/or polysaccharides in addition to , diverse application options involving haemocompatible surfaces. The invention specifically relates to the use of the oligo- and/or polysaccharides on stents involving at least …
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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 April 15, 2003 and granted January 17, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 15, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 15, 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
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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.