Details for Patent: 9,144,547
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Summary for Patent: 9,144,547
Title: | Oral dosage form for controlled drug release |
Abstract: | An oral dosage form comprising, (i) an erodable core, which core comprises a pharmaceutically active weak base or a pharmaceutically acceptable salt or solvate thereof; and (ii) an erodable coating surrounding said core, which coating comprises one or more openings extending substantially completely through said coating but not penetrating said core and communicating from the environment of use to said core; characterized in that release of the pharmaceutically active weak base or a pharmaceutically acceptable salt or solvate thereof from the dosage form occurs through the said opening(s) by the erosion of said erodable core and through erosion of said erodable coating under pre-determined pH conditions; a process for preparing such a dosage form and the use of such a dosage form in medicine. |
Inventor(s): | Li; Chi Leung (Harlow, GB), Martini; Luigi (Harlow, GB), Re; Vincenzo (Harlow, GB), Willy; Helen Anne (Harlow, GB) |
Assignee: | Glaxo Group Limited (Brentford, Middlesex, GB) |
Application Number: | 12/966,323 |
Patent Litigation and PTAB cases: | See patent lawsuits and PTAB cases for patent 9,144,547 |
Patent Claim Types: see list of patent claims | Compound; Dosage form; Process; |
Drugs Protected by US Patent 9,144,547
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Submissiondate |
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>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: 9,144,547
International Family Members for US Patent 9,144,547
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
---|---|---|---|---|---|
African Regional IP Organization (ARIPO) | 1736 | ⤷ Try a Trial | |||
Argentina | 038417 | ⤷ Try a Trial | |||
Austria | 455540 | ⤷ Try a Trial | |||
Australia | 2003245763 | ⤷ Try a Trial | |||
Brazil | 0307319 | ⤷ Try a Trial | |||
>Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |