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Serving hundreds of leading biopharmaceutical companies globally:

Mallinckrodt
Chubb
Fish and Richardson
Federal Trade Commission
Julphar
Cipla
UBS
Boehringer Ingelheim
Cantor Fitzgerald

Generated: June 18, 2018

DrugPatentWatch Database Preview

Details for Patent: 4,521,431

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Summary for Patent: 4,521,431
Title: Aminoalkyl furan derivative
Abstract:A novel crystal form of ranitidine (N-[2-[[[5-(dimethylamino)methyl]-2-furanyl]methyl]thio]ethyl-N'-methyl-2- nitro-1,1-ethenediamine) hydrochloride, designated Form 2, and having favorable filtration and drying characteristics, is characterized by its infra-red spectrum and/or by its x-ray powder diffraction patterns.
Inventor(s): Crookes; Derek L. (Hertford, GB2)
Assignee: Glaxo Group Limited (London, GB2)
Application Number:06/406,710
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 4,521,431
Patent Claim Types:
see list of patent claims
Compound; Composition; Dosage form; Use;

Drugs Protected by US Patent 4,521,431

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: 4,521,431

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom8031634Oct 01, 1980

International Family Members for US Patent 4,521,431

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 389696 ➤ Try a Free Trial
Austria 402069 ➤ Try a Free Trial
Austria 407956 ➤ Try a Free Trial
Austria A109189 ➤ 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:

Accenture
Medtronic
Julphar
Mallinckrodt
Healthtrust
Chubb
Federal Trade Commission
Daiichi Sankyo
US Army

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