04612008 is referenced by 323 patents and cites 5 patents.

An osmotic system is disclosed comprising a wall formed in at least a part of a semipermeable material that surrounds a compartment. The compartment contains a first osmotic composition comprising a beneficial agent, and a second and different osmotic composition. A passageway in the wall connects the first composition with the exterior of the system.

Title
Osmotic device with dual thermodynamic activity
Application Number
493760
Publication Number
4612008
Application Date
December 21, 1984
Publication Date
September 16, 1986
Inventor
Felix Theeuwes
Los Altos
CA, US
Joseph C Deters
Mt. View
CA, US
Brian Barclay
Sunnyvale
CA, US
Patrick S L Wong
Hayward
CA, US
Agent
Steven F Stone
Edward L Mandell
Paul L Sabatine
Assignee
Alza Corporation
CA, US
IPC
A61M 31/00
A61M 7/00
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