The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 04, 2008
Filed:
Jun. 28, 2003
Shaoling LI, Sunnyvale, CA (US);
Liang-chang Dong, Sunnyvale, CA (US);
Padmaja Shivanand, Los Altos, CA (US);
Patrick S. L. Wong, Burlingame, CA (US);
Shaoling Li, Sunnyvale, CA (US);
Liang-Chang Dong, Sunnyvale, CA (US);
Padmaja Shivanand, Los Altos, CA (US);
Patrick S. L. Wong, Burlingame, CA (US);
ALZA Corporation, Mountain View, CA (US);
Abstract
The present invention includes an expandable osmotic layer and a coating suspension for providing an expandable osmotic layer, both of which are useful for the manufacture of controlled release dosage forms. The expandable osmotic layer of the present invention may be produced using the coating suspension of the present invention. Advantageously, the coating suspension of the present invention can be used to coat expandable osmotic layers under both wet and dry process conditions without sacrificing the quality of the expandable osmotic layers produced, and therefore provides a relatively robust coating suspension that facilitates commercial production of controlled release dosage forms including a coated expandable osmotic layer.