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Serving leading biopharmaceutical companies globally:

US Department of Justice
Merck
Colorcon
Medtronic
Argus Health
QuintilesIMS
Queensland Health
Chinese Patent Office
Farmers Insurance
Fuji

Generated: February 17, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,100,347

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Summary for Patent: 4,100,347
Title: 3,4-Dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxylic acid-1,1-dioxide
Abstract:Process for production of 3,4-dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxylic acid-1,1-dioxide by hydrolysis, in the presence of hydroxide ions, of an alkyl or aralkyl ester thereof followed by precipitation of the acid at pH below 6.0 and its use as an intermediate for the production of N-(2-pyridyl)-3,4-dihydro-2-methyl-4-oxo-2H-1,2-benzothiazine-3-carboxamid e-1,1-dioxide and the analogous N-(2-thiazolyl)-compound, effective antiinflammatory agents.
Inventor(s): Hammen; Philip D. (East Lyme, CT)
Assignee: Pfizer Inc. (New York, NY)
Application Number:05/694,572
Patent Claim Types:
see list of patent claims
Compound;

Drugs Protected by US Patent 4,100,347

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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International Patents Family Members for US Patent 4,100,347

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 215006 ➤ Sign Up
Austria 356126 ➤ Sign Up
Austria A412177 ➤ Sign Up
Australia 2566677 ➤ Sign Up
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Belgium 855532 ➤ Sign Up
Bulgaria 41307 ➤ Sign Up
Canada 1077934 ➤ Sign Up
Switzerland 634312 ➤ Sign Up
Czechoslovakia 191341 ➤ Sign Up
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Serving hundreds of leading biopharmaceutical companies globally:

US Department of Justice
Teva
QuintilesIMS
Covington
Deloitte
Healthtrust
AstraZeneca
Queensland Health
UBS

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