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Details for Patent: 9,144,547

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Patent 9,144,547 protects LAMICTAL XR and is included in one NDA. There has been one Paragraph IV challenge on Lamictal XR. There are two tentative approvals for the compound protected by this patent. Additional details are available via the generic ingredient links below.

This patent has forty-seven patent family members in thirty-seven countries.

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 Claim Types:
see list of patent claims
Compound; Dosage form; Process;
Patent Metrics:
Source: PatentQuant.com
Field: Pharmaceuticals
Back Citations: 74th percentile
Forward Citations: 0th percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Glaxosmithkline Llc
LAMICTAL XR
lamotrigine
TABLET, EXTENDED RELEASE;ORAL022115-001May 29, 2009RXNo9,144,547► subscribeY
Glaxosmithkline Llc
LAMICTAL XR
lamotrigine
TABLET, EXTENDED RELEASE;ORAL022115-002May 29, 2009RXYes9,144,547► subscribeY
Glaxosmithkline Llc
LAMICTAL XR
lamotrigine
TABLET, EXTENDED RELEASE;ORAL022115-003May 29, 2009RXNo9,144,547► subscribeY
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Foreign Priority and PCT Information for Patent: 9,144,547

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom0203296.9Feb 12, 2002
United Kingdom0203297.7Feb 12, 2002
United Kingdom0203298.5Feb 12, 2002

International Patent Family for Patent: 9,144,547

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
African Regional IP Organization (ARIPO)1736► subscribe
African Regional IP Organization (ARIPO)200403087► subscribe
Argentina038417► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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