Patent · US Active

Pharmaceutical microparticles

US8110224B2 · kind B2 · utility

10Cited by

3References

23Claims

0Family size

Assignee

Novartis AG · CH

Inventors

Michael Ausborn · Lörrach, DE
Olivier Lambert · Pfastatt, FR
Oskar Nagele · Sissach, CH

Key dates

Filing date	Jul 17, 2008
Grant date	Feb 7, 2012
Priority date	—
Expiry date	Oct 15, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61K9/1694
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

Microparticles consisting of (a) a matrix with a mixture of (a1) at least one hydrophobic, biologically degradable polymer and (a2) optionally at least one water-soluble polymer, (b) a pharmaceutical active ingredient distributed in the matrix, and (c) in addition at least one water-insoluble, surface-active substance from the group of lecithins and phospholipids, distributed in the matrix, and a three-phase emulsion process for their preparation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.