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:
Jul. 15, 1997
Filed:
Jun. 22, 1994
Applicant:
Inventors:
Bruno Gander, Immensee, CH;
Hans Peter Merkle, Zurich, CH;
Assignee:
Schwarz Pharma AG, Monheim, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ;
U.S. Cl.
CPC ...
424489 ; 424490 ; 424491 ; 424492 ; 424493 ; 424494 ; 424495 ; 424496 ; 424497 ; 424498 ; 424457 ; 424499 ; 424500 ; 424501 ; 424502 ; 430138 ;
Abstract
A method for the production of microcapsules embedded with pharmaceuticals, peptides, proteins, enzymes and vaccines, which uses biodegradable solvents, and microcapsules free of toxic residual solvents is described. The microcapsules are obtained by spraying of a solution, suspension or water-in-oil dispersion of active materials and biodegradable polymers.