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

Annealed coats

Patent 5024842 Issued on June 18, 1991. Estimated Expiration Date: Icon_subject April 2, 2010. 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

2799241

3845770

3865108

3916899

Diester crosslinked polyglucan hydrogels and reticulated sponges thereof
Patent #: 4002173
Issued on: 01/11/1977
Inventor: Manning ,   et al.

Apparatus for tracking moving workpiece by a laser beam
Patent #: 4063064
Issued on: 12/13/1977
Inventor: Saunders ,   et al.

Process for forming outlet passageways in pills using a laser
Patent #: 4088864
Issued on: 05/09/1978
Inventor: Theeuwes, et al.

Therapeutic device for osmotically dosing at controlled rate
Patent #: 4160020
Issued on: 07/03/1979
Inventor: Ayer ,   et al.

Osmotic system with distribution zone for dispensing beneficial agent
Patent #: 4200098
Issued on: 04/29/1980
Inventor: Ayer ,   et al.

Device using hydrophilic polymer for delivering drug to biological environment
Patent #: 4207893
Issued on: 06/17/1980
Inventor: Michaels

More ...

Inventors

Assignee

Application

No. 503004 filed on 04/02/1990

US Classes:

424/473, With porous, perforated, apertured, or sieved layer (e.g., dialyzing layer, microporous layer, etc.)424/468, Sustained or differential release type424/469, Discrete particles in supporting matrix424/470, Where particles are granulated424/472, Layered unitary dosage forms424/474, Coated pills or tablets424/489Particulate form (e.g., powders, granules, beads, microcapsules, and pellets)

Examiners

Primary: Page, Thurman K.
Assistant: Horne, L.

Attorney, Agent or Firm

International Class

A61K 009/24

Abstract

A dosage form is disclosed comprising a coat that surrounds a drug. The coat comprises a subcoat and an overcoat thermally annealed to provide a single unit coat around the drug.

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