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: April 22, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,933,360

« Back to Dashboard

Summary for Patent: 4,933,360

Title:	Novel chlorthalidone process and product
Abstract:	Water-soluble dispersions of chlorthalidone are prepared by a process comprising: (a) forming a solution comprising a water soluble pharmaceutically acceptable polymeric carrier and a C.sub.1 -C.sub.4 alkanol, (b) dissolving chlorthalidone in the solution thus formed, and (c) removing the C.sub.1 -C.sub.4 alkanol from the solution by evaporation, the amount of said carrier being effective to suppress substantially the formation of the alkyl ether by-product from the reaction of chlorthalidone with the C.sub.1 -C.sub.4 alkanol. A preferred water soluble carrier is polyvinylpyrrolidone and a preferred C.sub.1 -C.sub.4 alkanol is methanol.
Inventor(s):	Pandit; Nivedita (Middlebury, CT), Horhota; Stephen T. (Brookfield, CT)
Assignee:	Boehringer Ingelheim Pharmaceuticals, Inc. (Ridgefield, CT)
Application Number:	06/796,467
Patent Claim Types: see list of patent claims	Process; Formulation; Composition; Dosage form; Use;

Drugs Protected by US Patent 4,933,360

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

International Patents Family Members for US Patent 4,933,360

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
Croatia	P940726	➤ Sign Up
Greece	81478	➤ Sign Up
Finland	82188	➤ Sign Up
Denmark	156784	➤ Sign Up
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.