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Serving hundreds of leading biopharmaceutical companies globally:

Queensland Health
Medtronic
AstraZeneca
Chubb
Merck
Mallinckrodt
UBS
Baxter
Accenture

Generated: April 21, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,250,113

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Summary for Patent: 4,250,113
Title: Chemical compounds
Abstract:Compounds of the formula: ##STR1## wherein R represents the group --CH.sub.2 CH.sub.2 OH or --CH.sub.2 CHOHCH.sub.2 OH, particularly in racemic or optically active form, are employed as active ingredients in X-ray contrast agents for intracerebral, but particularly for vascular use. The compounds are prepared by reacting 5-(N-acetamido)-2,4,6-triiodo-N,N'-bis-(2,3-dihydroxypropyl)isophthalamide or an O-acetyl derivative thereof with an appropriate hydroxyalkylating agent and subsequently, if necessary, hydrolysing any unwanted O-acetyl groups.
Inventor(s): Nordal; Vegard (Oslo, NO), Holtermann; Hugo (Oslo, NO)
Assignee: Nyegaard & Co. A/S (Oslo, NO)
Application Number:06/069,589
Patent Claim Types:
see list of patent claims
Compound;

Drugs Protected by US Patent 4,250,113

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: 4,250,113

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom24338/76Jun 11, 1976

International Patents Family Members for US Patent 4,250,113

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Belgium 855580 ➤ Try a Free Trial
Switzerland 630064 ➤ Try a Free Trial
Germany 2726196 ➤ Try a Free Trial
Denmark 258477 ➤ Try a Free Trial
Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration

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Serving hundreds of leading biopharmaceutical companies globally:

Chubb
QuintilesIMS
Cipla
Citi
US Army
Federal Trade Commission
AstraZeneca
Dow
US Department of Justice

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