Xu L Zheng

US Patent:

6756051, Jun 29, 2004

Filed:

Nov 15, 2000

Appl. No.:

09/713548

Inventors:

Li-Lan H. Chen - Edison NJ 08817
Li Tao - Edison NJ 08817
Alfred Liang - Edison NJ 08820
Xu Zheng - Edison NJ 08837

International Classification:

A01N 2534

US Classification:

424443, 424422, 424434, 424435, 424448, 424449, 424430, 424447

Abstract:

Bioadhesive, closed-cell foam film, sustained release, delivery devices for administering an active agent or combination of active agents to a subject are provided. Methods for making such delivery devices and to methods for using such delivery devices offering the controlled and sustained release of an active agent or combination of active agents to a subject, preferably a near zero-order release, are also provided.

US Patent:

7138135, Nov 21, 2006

Filed:

Jun 24, 2004

Appl. No.:

10/874223

Inventors:

Li-Lan H. Chen - Edison NJ, US
Li Tao - Edison NJ, US
Alfred Liang - Edison NJ, US
Xu Zheng - Edison NJ, US

Assignee:

Lavipharm Laboratories Inc. - East Windsor NJ

International Classification:

A61F 13/00
A61F 13/02
A61F 2/00
A61F 6/05
A61L 15/16

US Classification:

424443, 424434, 424435, 424448, 424449, 424427, 424430

Abstract:

Bioadhesive, closed-cell foam film, sustained release, delivery devices for administering an active agent or combination of active agents to a subject are provided. Methods for making such delivery devices and methods for using such delivery devices offering the controlled and sustained release of an active agent or combination of active agents to a subject, preferably a near zero-order release, are also provided.

US Patent:

20040013731, Jan 22, 2004

Filed:

Apr 8, 2003

Appl. No.:

10/409696

Inventors:

Li-Lan Chen - Edison NJ, US
Alfred Liang - Edison NJ, US
Xu Zheng - Edison NJ, US

Assignee:

Lavipharm Laboratories Inc.

International Classification:

A61K031/473
A61K009/14

US Classification:

424/486000, 424/487000, 514/290000

Abstract:

Oral drug complex microparticles containing: a pharmaceutical active having a nitrogen moiety and an anionic methacrylic acid copolymer; wherein the oral drug complex micropaticles resist dissolution or dissociation upon exposure to saliva, but which rapidly dissociate in gastric acid and which rapidly dissolve in intestinal fluid. Oral drug delivery devices containing said oral drug complex microparticles are provided. Processes for producing said oral drug complex microparticles and methods for treating patients including administering said oral drug delivery devices thereto are also provided.