Details for Patent: 4,839,177
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Summary for Patent: 4,839,177
Title: | System for the controlled-rate release of active substances |
Abstract: | A system for the controlled-rate release of active substances, consisting of: (a) a deposit-core comprising the active substance and having defined geometric form; (b) a support-platform applied to said deposit-core. Said deposit-core contains, mixed with the active substance, a polymeric material having a high degree of swelling on contact with water or aqueous liqids, a gellable polymeric material, said polymeric materials being replaceable by a single polymeric material having both swelling and gelling properties, and other adjuvants able to provide the mixture with suitable characteristics for its compression and for its intake of water. |
Inventor(s): | Colombo; Paolo (Pavia, IT), La Manna; Aldo (Pavia, IT), Conte; Ubaldo (Busto Arsizio, IT) |
Assignee: | Jagotec AG (Hergiswill, CH) |
Application Number: | 06/939,810 |
Patent Claim Types: see list of patent claims | Formulation; Process; |
Drugs Protected by US Patent 4,839,177
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Submissiondate |
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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 |
Foreign Priority and PCT Information for Patent: 4,839,177
Foriegn Application Priority Data | ||
Foreign Country | Foreign Patent Number | Foreign Patent Date |
Italy | 23321 A/85 | Dec 20, 1985 |
International Family Members for US Patent 4,839,177
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
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Austria | 58472 | ⤷ Try a Trial | |||
Australia | 594992 | ⤷ Try a Trial | |||
Australia | 6672586 | ⤷ Try a Trial | |||
Canada | 1298479 | ⤷ Try a Trial | |||
>Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |