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Last Updated: September 20, 2020

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Details for Patent: RE39069

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Summary for Patent: RE39069
Title:Multi-layered osmotic device
Abstract:The present invention provides a simple and improved multi-layered osmotic device (1) that is capable of delivering a first active agent in an outer lamina (2) to one environment of use and a second active agent in the core (5) to another environment of use. Particular embodiments of the invention provide osmotic devices in which the first and second active agents are similar or dissimilar. An erodible polymer coat (3) between an internal semipermeable membrane (4) and a second active agent-containing external coat (2) comprises poly(vinylpyrrolidone)-(vinyl acetate) copolymer. This particular erodible polymer results in an improved multi-layered osmotic device possessing advantages over related devices known in the art. The active agent in the core (5) is delivered through a pore (6) containing an erodible plug (7). The osmotic device (1) can be coated by a final finish coat (8).
Inventor(s): Faour; Joaquina (Buenos Aires, AR), Mayorga; Jorge E. (Buenos Aires, AR)
Assignee: Osmotica Corp. (Tortola, VG)
Application Number:10/004,772
Patent Claim Types:
see list of patent claims
Delivery; Device; Formulation;

Drugs Protected by US Patent RE39069

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: RE39069

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
ArgentinaP97 01 02351May 30, 1997

International Family Members for US Patent RE39069

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 007358   Start Trial
Austria 250929   Start Trial
Australia 7706598   Start Trial
Brazil 9802144   Start Trial
Brazil PI9802144   Start Trial
Canada 2261787   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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