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Last Updated: December 12, 2025

Claims for Patent: 6,132,420

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Summary for Patent: 6,132,420

Title:	Osmotic delivery system and method for enhancing start-up and performance of osmotic delivery systems
Abstract:	The present invention relates to an osmotically driven agent delivery system for delivering a beneficial agent. The osmotic delivery system includes an osmotic agent which operates by imbibing fluid from an outside environment, causing the release of a beneficial agent. The osmotic delivery system includes a liquid or gel additive surrounding the osmotic agent for enhancing start-up and lubricating the osmotic agent. The liquid or gel additive is an incompressible lubricating fluid which fills any air gaps between the osmotic agent and the walls of a chamber and substantially reduces start-up delays.
Inventor(s):	Keith E. Dionne, Scott D. Lautenbach
Assignee:	Intarcia Therapeutics Inc
Application Number:	US08/970,530
Patent Claims:

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