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Details for Patent: 6,114,319

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Patent 6,114,319 protects DUREZOL and is included in one NDA. There has been one Paragraph IV challenge on Durezol.

Protection for DUREZOL has been extended six months for pediatric studies, as indicated by the *PED designation in the table below.

This patent has six patent family members in five countries.

Summary for Patent: 6,114,319

Title: Compositions containing difluprednate
Abstract:The present invention relates to a liquid composition comprising difluprednate, oil, water and an emulsifier. The composition of the present invention has superior antiinflammatory action and antiallergic action. The composition of the present invention shows superior transfer to a lesion and uniform drug distribution upon administration, as compared to conventional preparations containing difluprednate, so that it shows sufficient efficacy in a smaller dose. The inventive composition is associated with extremely less uncomfortable feeling and foreign sensation upon administration, as compared to conventional preparations containing difluprednate, and it can be administered easily to local sites of eye, nose, ear and the like.
Inventor(s): Kimura; Masako (Kakogawa, JP), Yasueda; Shin-ichi (Kobe, JP), Yamaguchi; Masazumi (Kobe, JP), Inada; Katsuhiro (Kobe, JP)
Assignee: Senju Pharmaceutical Co., Ltd. (JP) Mitsubishi Chemical Corporation (JP)
Application Number:09/076,124
Patent Claim Types:
see list of patent claims
Compound; Dosage form;
Patent Metrics:
Source: PatentQuant.com
Field: Not categorized
Back Citations: 5th 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
Alcon Pharms Ltd
EMULSION;OPHTHALMIC022212-001Jun 23, 2008RXYes6,114,319*PEDNov 18, 2019Y
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Foreign Priority and PCT Information for Patent: 6,114,319

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan9-124415May 14, 1997

International Patent Family for Patent: 6,114,319

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
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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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