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Serving hundreds of leading biopharmaceutical companies globally:

Healthtrust
Cantor Fitzgerald
Farmers Insurance
Teva
Boehringer Ingelheim
McKesson
Medtronic
Cerilliant
Merck

Generated: June 22, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,364,921

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Summary for Patent: 4,364,921
Title: Novel triiodinated isophthalic acid diamides as nonionic X-ray contrast media
Abstract:New triiodinated isophthalic acid diamides of the formula ##STR1## wherein the amide residues --CO--N.R.sub.1 R.sub.2 and --CO--N.R.sub.3 R.sub.4 are different from each other and R.sub.1 is hydrogen or C.sub.1-6 alkyl, R.sub.2 is mono- or polyhydroxyalkyl, R.sub.3 is hydrogen or C.sub.1-6 alkyl, R.sub.4 is mono- or polyhydroxylalkyl, R.sub.5 is C.sub.1-6 alkyl or mono- or polyhydroxy-C.sub.1-6 -alkyl or C.sub.1-3 -alkoxy-C.sub.1-3 -alkyl, and R.sub.6 is hydrogen, C.sub.1-6 alkyl or mono- or polyhydroxyalkyl provide superior nonionic X-ray contrast media.
Inventor(s): Speck; Ulrich (Berlin, DE), Blaszkiewicz; Peter (Berlin, DE), Seidelmann; Dieter (Berlin, DE), Klieger; Erich (Berlin, DE)
Assignee: Schering, Aktiengesellschaft (Berlin & Bergkamen, DE)
Application Number:06/127,613
Patent Claim Types:
see list of patent claims
Compound; Composition; Use;

Drugs Protected by US Patent 4,364,921

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: 4,364,921

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany2909439Mar 08, 1979

International Family Members for US Patent 4,364,921

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 1061 ➤ Try a Free Trial
Australia 529565 ➤ Try a Free Trial
Australia 5627280 ➤ Try a Free Trial
Canada 1130316 ➤ 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:

Covington
Federal Trade Commission
McKesson
Mallinckrodt
Fuji
US Army
Express Scripts
Farmers Insurance
Chubb

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