Upgrade to enjoy subscriber-only features like email alerts and data export. See the Plans and Pricing

Serving hundreds of leading biopharmaceutical companies globally:

Generated: June 24, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,474,787

« Back to Dashboard

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 Litigation and PTAB cases:	See patent lawsuits and PTAB cases for patent 4,474,787
Patent Claim Types: see list of patent claims	Compound; Use; Composition; Dosage form;

Drugs Protected by US Patent 4,474,787

Glossary

This preview shows a limited data set. Subscribe for full access, or try a Free Trial
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

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

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
United Kingdom	18597/77	May 04, 1977
United Kingdom	48565/77	Nov 04, 1977
United Kingdom	16168/78	Apr 25, 1978

International Family Members for US Patent 4,474,787

This preview shows a limited data set. Subscribe for full access, or try a Free Trial
Country	Document Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Australia	3573178	➤ Try a Free Trial
Australia	520816	➤ Try a Free Trial
Belgium	866622	➤ Try a Free Trial
Canada	1112644	➤ Try a Free Trial
Country	Document Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration

For more information try a trial or see the plans and pricing

Serving hundreds of leading biopharmaceutical companies globally:

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.