Patent Number Title Trade Name AssigneeExpiration

Date

Therapeutic

AreaStructure

Annual Sales of

the drug in USA

US4687777Thiazolidinedione derivatives,

useful as antidiabetic agents

Actos

Takeda Chemical

Industries Ltd18-Jan-11

Diabetes/

HyperlipemiaUSD 2531.6 mn

US48086166-substituted androsta-1,4-

diene-3,17-diones

Aromasin

Pfizer 01-Apr-11

Hormone-

dependent

cancers

USD 483 mn

US00RE34712

Pharmaceutically useful (+)-1-

(3-dimethyl

aminopropyl)-1-(4'-

fluorophenyl)-1,3-dihydroiso

benzofuran-5-carbonitrile and

non-toxic acid addition salts

thereof

Lexapro

Forest

Pharmaceuticals14-Sep-11

Anti-

depressant/

Obesity/

Alcoholism

USD 2334.4 mn

JP1879509

Dibenzothiazepine compound,

manufacture and

pharmaceutical composition

having antipsychotic and

neuroleptic activity

Seroquel

AstraZeneca 26-Sep-11

Acute dystonia,

Acute

dyskinesia and

Tardive

dyskinesia

USD 3117.6 mn

EP04544362-methyl-thieno-

benzodiazepine

Zyprexa

Eli Lilly

27-Sep-11

across

Europe

Psychotic

disorders,

resistive

depression,

bipolar I

disorder

USD 1855.4 mn

NL970034

Trans-6-[2-(3- or 4-

Carboxamido-substituted

pyrrol-1-yl)-alkyl]-4-

hydroxypyran-2-one inhibitors

of cholesterol synthesis

Lipitor

Pfizer 06-Nov-11Cholestrol

InhibitionUSD 5363.2 mn

Note: The above list is indicative and incomplete. It is only meant to provide a sample of drug patents expiring in 2011. closer2patents can further provide interested parties with

patent expiration details for multiple countries and multiple drugs as per their requirement.

For further details email us at info@closer2patents.com or call us at +91 22 65281005 / +91 9920866540. Visit Us at www.closer2patents.com . Thank You !

Sample List of Drugs going Off-Patent in 2011