Coating for medical devices comprising a copolymer of a polyalkylene gylcol terephthalate and an aromatic polyester
CA 2442593 C · Owner: Chienna B.V. · Inventors: Bezemer, Jeroen Mattijs; Sohier, Jerome
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 coating for medical devices. The coating comprises a specific copolymer of a polyalkylere glycol terephtalate and an aromatic polysester which the composition may be adjusted such as to archieve an excellent adhesion to a wide range of surfaces. The coating may further comprise an additive, such as a biologically active agent which may be , released in vivo in a controlled manner as the degradability of the coating , may also be adjusted to a predetermined rate. The invention further relates to a process for applying the coating to a surface and to a medical device comprising the coating.
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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 2, 2002 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 2, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 2, 2024.
- 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.