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Details for Patent: 5,880,283

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Patent 5,880,283 protects ZYMAXID and ZYMAR and is included in two NDAs. There have been zero Paragraph IV challenges on Zymaxid and Zymar There is one tentative approval for the compound protected by this patent. Additional details are available via the generic ingredient links below.

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

This patent has seventeen patent family members in fourteen countries.

Summary for Patent: 5,880,283

Title: 8-alkoxyquinolonecarboxylic acid hydrate with excellent stability and process for producing the same
Abstract:The invention provides 1-cyclopropyl-6-fluoro-1,4- dihydro-8-methoxy-7-(3-methyl-1-piperazinyl)-4-oxo-3- quinolinecarboxylic acid sesquihydrate with excellent stability represented by a following formula (1), ##STR1## and process for producing the same.
Inventor(s): Matsumoto; Toyomi (Kamiina-gun, JP), Hara; Masamoto (Okaya, JP), Miyashita; Kunio (Okaya, JP), Kato; Yukihiro (Okaya, JP)
Assignee: Kyorin Pharmaceutical Co., Ltd. (Tokyo, JP)
Application Number:08/860,325
Patent Claim Types:
see list of patent claims
Compound; Process;
Patent Metrics:
Source: PatentQuant.com
Field: Organic fine chemistry
Back Citations: 6th percentile
Forward Citations: 2nd percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
SOLUTION/DROPS;OPHTHALMIC022548-001May 18, 2010RXYes5,880,283*PED► subscribeY
SOLUTION/DROPS;OPHTHALMIC021493-001Mar 28, 2003RXYes5,880,283*PED► subscribeY
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Foreign Priority and PCT Information for Patent: 5,880,283

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan6-335569Dec 21, 1994
PCT Information
PCT FiledDecember 05, 1995PCT Application Number:PCT/JP95/02477
PCT Publication Date:June 27, 1996PCT Publication Number: WO96/19472

International Patent Family for Patent: 5,880,283

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria216381► subscribe
Australia3994695► subscribe
Australia694946► 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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