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Serving hundreds of leading biopharmaceutical companies globally:

Chubb
Teva
UBS
Farmers Insurance
Express Scripts
Dow
Healthtrust
AstraZeneca
Mallinckrodt

Generated: May 21, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,092,315

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Summary for Patent: 4,092,315
Title: Novel crystalline forms of prazosin hydrochloride
Abstract:The invention relates to novel and valuable crystalline forms of the hypotensive agent prazosin hydrochloride. The anhydrous .alpha.-form is preferred because it is relatively non-hygroscopic and hence possesses important advantages in handling and formulation. The polyhydrate form of prazosin hydrochloride is preferred because of its low, uniform rate of dissolution.
Inventor(s): Bianco; Ernest J. (Niantic, CT)
Assignee: Pfizer Inc. (New York, NY)
Application Number:05/662,937
Patent Claim Types:
see list of patent claims
Compound; Process;

Drugs Protected by US Patent 4,092,315

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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International Family Members for US Patent 4,092,315

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 210937 ➤ Try a Free Trial
Australia 2244377 ➤ Try a Free Trial
Australia 506937 ➤ Try a Free Trial
Belgium 851878 ➤ 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:

Citi
Boehringer Ingelheim
Deloitte
Julphar
Healthtrust
Medtronic
Federal Trade Commission
Cantor Fitzgerald
Accenture

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