Details for Patent: 4,904,769

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Summary for Patent: 4,904,769

Patent landscape, scope, and claims:

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 Claim Types: see list of patent claims	Composition; Process;
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Drugs Protected by US Patent 4,904,769

Glossary

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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

Foreign Priority and PCT Information for Patent: 4,904,769

Foriegn Application Priority Data
Foreign Country	Foreign Patent Number	Foreign Patent Date
Germany	3543999	Dec 13, 1985

International Family Members for US Patent 4,904,769

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Country	Patent Number	Estimated Expiration	Supplementary Protection Certificate	SPC Country	SPC Expiration
Austria	71951	⤷ Subscribe
Bulgaria	49497	⤷ Subscribe
Canada	1288768	⤷ Subscribe
>Country	>Patent Number	>Estimated Expiration	>Supplementary Protection Certificate	>SPC Country	>SPC Expiration

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