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Last Updated: August 13, 2022

Details for Patent: 6,113,938

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Summary for Patent: 6,113,938
Title: Beneficial agent delivery system with membrane plug and method for controlling delivery of beneficial agents
Abstract:An osmotic delivery system for controlled delivery of a beneficial agent includes an implant capsule containing a beneficial agent and an osmotic agent which swells on contact with water causing the release of the beneficial agent over time. The osmotic delivery system has a membrane plug which allows water to pass through the plug from an exterior of the capsule while preventing the compositions within the capsule from passing out of the capsule. A delivery rate for delivery of the beneficial agent from the implant capsule is controlled by varying a core diameter of the membrane plug within a constant diameter capsule. The membrane plug has a variable water permeation rate depending on an extent to which the membrane plug is constrained by the capsule walls.
Inventor(s): Chen; Guohua (Sunnyvale, CA), Lautenbach; Scott (San Mateo, CA), Dionne; Keith (Cambridge, MA), Hom; Lawton (San Francisco, CA)
Assignee: ALZA Corporation (Mountain View, CA)
Application Number:09/121,835
Patent Claim Types:
see list of patent claims
Delivery; Dosage form; Device; Use;

Drugs Protected by US Patent 6,113,938

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

International Family Members for US Patent 6,113,938

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina 013256 See Plans and Pricing
Austria 342051 See Plans and Pricing
Austria 537818 See Plans and Pricing
Australia 8493998 See Plans and Pricing
Canada 2316886 See Plans and Pricing
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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Serving leading biopharmaceutical companies globally:

Express Scripts
Boehringer Ingelheim
Johnson and Johnson

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