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Serving 500+ biopharmaceutical companies globally:

Cerilliant
Colorcon
Novartis
Accenture
Federal Trade Commission
McKinsey
Daiichi Sankyo
Dow
Healthtrust
Argus Health

Generated: August 17, 2017

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Which drugs does patent 9,144,547 protect, and when does it expire?


Patent ► Subscribe protects LAMICTAL XR and is included in one NDA. There has been one Paragraph IV challenge on Lamictal XR.

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

Summary for Patent: ► Subscribe

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;

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Glaxosmithkline Llc
LAMICTAL XR
lamotrigine
TABLET, EXTENDED RELEASE;ORAL022115-001May 29, 2009ABRXYesNo► Subscribe► SubscribeY
Glaxosmithkline Llc
LAMICTAL XR
lamotrigine
TABLET, EXTENDED RELEASE;ORAL022115-002May 29, 2009ABRXYesYes► Subscribe► SubscribeY
Glaxosmithkline Llc
LAMICTAL XR
lamotrigine
TABLET, EXTENDED RELEASE;ORAL022115-003May 29, 2009ABRXYesNo► Subscribe► SubscribeY
Glaxosmithkline Llc
LAMICTAL XR
lamotrigine
TABLET, EXTENDED RELEASE;ORAL022115-004May 29, 2009ABRXYesYes► Subscribe► SubscribeY
Glaxosmithkline Llc
LAMICTAL XR
lamotrigine
TABLET, EXTENDED RELEASE;ORAL022115-006Jun 21, 2011ABRXYesNo► Subscribe► SubscribeY
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Foreign Priority and PCT Information for Patent: ► Subscribe

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: ► Subscribe

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Malaysia139719► Subscribe
MexicoPA04007794► Subscribe
Morocco27689► Subscribe
South Korea20040084900► Subscribe
South Korea101048925► 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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Serving 500+ biopharmaceutical companies globally:

UBS
Boehringer Ingelheim
US Army
Cipla
Fish and Richardson
QuintilesIMS
Cantor Fitzgerald
Julphar
AstraZeneca
Medtronic

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