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Details for Patent: 5,427,798
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» See Plans and PricingSummary 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 |
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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 Kingdom | 9217295 | Aug 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 |
