U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Delivery system housing a plurality of delivery devices

Patent 4578075 Issued on March 25, 1986. Estimated Expiration Date: Icon_subject March 25, 2003. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3786813

3917813

Multiple-units drug dose
Patent #: 4193985
Issued on: 03/18/1980
Inventor: Bechgaard ,   et al.

Pharmaceutical preparation comprising a cardiac glycoside with a polymer coating
Patent #: 4263273
Issued on: 04/21/1981
Inventor: Appelgren ,   et al.

Method for treating hypertonia with N-(2-furfuryl)-4-chloro-5-sulfamoyl-anthranilic acid and preparations thereof
Patent #: 4324779
Issued on: 04/13/1982
Inventor: Dahlhausen ,   et al.

Osmotic device that improves delivery properties of agent in situ
Patent #: 4326525
Issued on: 04/27/1982
Inventor: Swanson ,   et al.

Capsule product containing high dosage of aspirin in powder or granulated form and alkaline tablet or pellet comprising magnesium carbonate, calcium carbonate and a magnesium dry component Patent #: 4339428
Issued on: 07/13/1982
Inventor: Tencza

Inventors

Assignee

Application

No. 06/451329 filed on 12/20/1982

US Classes:

604/892.1, Osmotic or diffusion pumped device or system424/453, Telescoping two piece424/458Containing discrete coated particles pellets, granules, or beads

Examiners

Primary: Rosenbaum, C. Fred
Assistant: Vinyard, Sherri E.

Attorney, Agent or Firm

International Classes

A61K 9/00 (20060101)
A61J 3/07 (20060101)

Abstract

A delivery system is disclosed comprising a wall surrounding a lumen containing a plurality of osmotic delivery devices. The wall is formed of an environment sensitive material that releases the tiny osmotic devices into the environment. The osmotic devices comprise a semipermeable wall surrounding a compartment containing drug. A passageway through the semipermeable wall releases drug from the device to the environment.

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