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. 11, 2003
Filed:
Jul. 12, 1999
Applicant:
Inventors:
Fred M. Clark, Philadelphia, PA (US);
Paul A. Offit, Bala Cynwyd, PA (US);
Tully J. Speaker, Philadelphia, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/14 ;
U.S. Cl.
CPC ...
A61K 9/14 ;
Abstract
The present invention relates to microcapsules comprising a wall and an aqueous core comprising various active agents, and prepared by the interfacial reaction in aqueous medium of Lewis acid and base wall-forming reactants.