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Serving leading biopharmaceutical companies globally:

Citi
Merck
Cantor Fitzgerald
Mallinckrodt
McKinsey
Teva
Fish and Richardson
Deloitte
McKesson
Moodys

Generated: January 19, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,474,787

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Summary for Patent: 4,474,787
Title: 7,6 Dioxo-4H,6H-pyrano[3,2-g]quinoline dicarboxylic acids and anti-allergic use thereof
Abstract:There are described compounds of formula I ##STR1## in which an adjacent pair of R.sub.5, R.sub.6, R.sub.7 and R.sub.8 form a chain --COCH.dbd.CE--O--, and the remainder of R.sub.5, R.sub.6, R.sub.7 and R.sub.8, which may be the same or different, each represent hydrogen, hydroxy, alkyl, halogen, alkenyl, alkoxy, or --NR.sub.1 R.sub.2 in which R.sub.1 and R.sub.2, which are the same or different, are each hydrogen or alkyl, Rg is hydrogen, alkyl, alkenyl or phenyl-alkyl, and E is --COOH, a 5-tetrazolyl group or an (N-tetrazol-5-yl) carboxamido group, and pharmaceutically acceptable derivatives thereof. There are also described processes for making the compounds and pharmaceutical, e.g. anti-allergic, compositions containing the compounds.
Inventor(s): Cairns; Hugh (Loughborough, GB2), Cox; David (Loughborough, GB2)
Assignee: Fisons Limited (GB2)
Application Number:06/344,982
Patent Claim Types:
see list of patent claims
Compound; Use; Composition; Dosage form;

Drugs Protected by US Patent 4,474,787

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted
Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Patent Submitted

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Foreign Priority and PCT Information for Patent: 4,474,787

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom18597/77May 04, 1977
United Kingdom48565/77Nov 04, 1977
United Kingdom16168/78Apr 25, 1978

International Patents Family Members for US Patent 4,474,787

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Australia 3573178 ➤ Subscribe
Australia 520816 ➤ Subscribe
Belgium 866622 ➤ Subscribe
Canada 1112644 ➤ Subscribe
Switzerland 634071 ➤ Subscribe
Cyprus 1279 ➤ Subscribe
Germany 2819215 ➤ Subscribe
Denmark 158266 ➤ Subscribe
Denmark 190178 ➤ Subscribe
Spain 469391 ➤ Subscribe
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving leading biopharmaceutical companies globally:

Julphar
Moodys
Citi
UBS
Argus Health
US Department of Justice
Johnson and Johnson
Queensland Health
Deloitte

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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