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Details for Patent: 6,113,938

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Patent 6,113,938 protects VIADUR and is included in one NDA.

This patent has seventeen patent family members in fifteen countries.

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;
Patent Metrics:
Source: PatentQuant.com
Field: Medical technology
Back Citations: 20th percentile
Forward Citations: 3rd percentile

Applicant Tradename Generic Name Dosage NDA Approval Date Type RLD Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use
Ortho Mcneil Janssen
VIADUR
leuprolide acetate
IMPLANT;IMPLANTATION021088-001Mar 3, 2000DISCNNo6,113,938► subscribe
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International Patent Family for Patent: 6,113,938

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Argentina013256► subscribe
Austria342051► subscribe
Austria537818► subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. thinkBiotech performs no independent verifification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.

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