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Serving hundreds of leading biopharmaceutical companies globally:

Moodys
Colorcon
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Medtronic
Federal Trade Commission
Argus Health
McKesson
QuintilesIMS
US Army

Generated: May 23, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,904,769

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Summary for Patent: 4,904,769
Title: Highly pure acarbose
Abstract:A purified acarbose which contains less than 10% by weight of sugar-like secondary components is obtained by column chromatograph of a solution of prepurified acarbose with a pH 4 to 7. The column contains as a packing material a weakly acid cation exchanger which has carboxyl groups and is based on dextran, agarose and cellulose or exchangers which are derived from the latter with the addition of polyamide.
Inventor(s): Rauenbusch; Erich (Wuppertal, DE)
Assignee: Bayer Aktiengesellschaft (Leverkusen, DE)
Application Number:06/940,713
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 4,904,769
Patent Claim Types:
see list of patent claims
Composition; Process;

Drugs Protected by US Patent 4,904,769

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: 4,904,769

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Germany3543999Dec 13, 1985

International Family Members for US Patent 4,904,769

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Bulgaria 49497 ➤ Try a Free Trial
Canada 1288768 ➤ Try a Free Trial
China 86108259 ➤ Try a Free Trial
China 1013866 ➤ 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
Cipla
Federal Trade Commission
Cantor Fitzgerald
Healthtrust
McKesson
US Army
QuintilesIMS
Boehringer Ingelheim

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