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Last Updated: March 29, 2020

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Details for Patent: 5,427,798


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Summary for Patent: 5,427,798
Title: Controlled sustained release tablets containing bupropion
Abstract:A controlled sustained release tablet having at least one year shelf life and containing bupropion hydrochloride, hydroxypropyl methylcellulose and cysteine hydrochloride or glycine hydrochloride with the tablet having a surface area to volume ratio to effectively control bupropion hydrochloride release in the body.
Inventor(s): Ludwig; Jennie Sue G. (Greenville, NC), Bass, Jr.; William L. (Farmville, NC), Sutton, Jr.; Joel E. (Greenville, NC)
Assignee: Burroughs Wellcome Co. (Research Triangle Park, NC)
Application Number:08/105,447
Patent Litigation and PTAB cases: See patent lawsuits and PTAB cases for patent 5,427,798
Patent Claim Types:
see list of patent claims
Compound; Dosage form;

Drugs Protected by US Patent 5,427,798

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: 5,427,798

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
United Kingdom9217295Aug 14, 1992

International Family Members for US Patent 5,427,798

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Austria 161422   Start Trial
Australia 4725893   Start Trial
Australia 677595   Start Trial
Canada 2142320   Start Trial
Cyprus 2143   Start Trial
Germany 69316015   Start Trial
European Patent Office 0656775   Start Trial CR 2000 00018 Denmark   Start Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

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Express Scripts

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