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Last Updated: March 29, 2024

Details for Patent: 4,954,348


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Summary for Patent: 4,954,348
Title: Non-ionic polyol contrast media from ionic contrast media
Abstract:Novel non-ionic contrast media of a hitherto unknown combination of low osmolality and low viscosity are efficiently prepared from generally available ionic contrast media or non-iodinated precursors. Particularly, polyhydroxyhalo-hydrocarbons are employed with a triiodo-substituted acylamido benzoic acids in aqueous weakly basic media to selectively substitute the amido nitrogen, followed by activation of the carboxyl group for amide formation.
Inventor(s): Sovak; Milos (Rancho Santa Fe, CA), Ranganathan; Ramachandran (Princeton, NJ)
Assignee: Cook Imaging Corporation (Bloomington, IN)
Application Number:07/214,663
Patent Claim Types:
see list of patent claims
Formulation; Compound;

Drugs Protected by US Patent 4,954,348

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

International Family Members for US Patent 4,954,348

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 97577 ⤷  Try a Trial
Australia 600672 ⤷  Try a Trial
Australia 6197486 ⤷  Try a Trial
Australia 650432 ⤷  Try a Trial
Australia 6686690 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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