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.

Date of Patent:
Sep. 20, 2005

Filed:

Jul. 24, 2003
Applicants:

Steven Y. NG, San Francisco, CA (US);

Jorge Heller, Woodside, CA (US);

Inventors:

Steven Y. Ng, San Francisco, CA (US);

Jorge Heller, Woodside, CA (US);

Assignee:

A.P. Pharma, Inc., Redwood City, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K009/52 ; A61K047/30 ;
U.S. Cl.
CPC ...
Abstract

Block copolymers based on poly(ortho esters) containing amine groups. These block copolymers have both hydrophilic and hydrophobic blocks. They form micelles in aqueous solution, making them suitable for encapsulation or solubilization of hydrophobic or water-insoluble materials; and they also form bioerodible matrices for the sustained release of active agents.


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