Multiparticle pharmaceutical dosage form containing a mucoadhesively formulated peptide or protein active substances, and a method for producing said pharmaceutical dosage form
CA 2532487 C · Owner: Rohm Gmbh · Inventors: Roth, Erna; Lizio, Rosario; Petereit, Hans-Ulrich
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to an oral, multiparticle pharmaceutical dosage form containing pellets the size, of which ranges from 50 to 2500 m and which essentially consist of: a) an inner matrix layer containing an active substance which is a peptide or a protein including the derivatives or conjugates thereof and, which is embedded in a matrix consisting of a polymer with mucoadhesive effect, and b) an outer film coating essentially consisting of an anionic polymer or copolymer, which can be optionally formulated with pharmaceutically conventional adjuvants more, particularly softening agents.
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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 15, 2004 and granted September 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 15, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 15, 2026.
- 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.