Compositions for therapeutic percutaneous embolization and the use thereof
CA 1313617 C · Owner: Leshchiner, Adolf · Inventors: Leshchiner, Adolf; Hilal, Sadek K.; Balazs, Endre A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Percutaneous emboli are formed for therapeutic and/or corrective reasons by using a composition which includes cross-linked gels of hyaluronic acid (HA) hylan (HY) or mixed crosslinked gels of HA or HY with other materials thrombin and cationic substances containing quaternary ammonium groups. Other optional materials include fillers and radio-opaque substances.
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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 February 16, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2010.
- 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.