Patent · US Active

Pharmaceutical microparticles

US8460709B2 · kind B2 · utility

81Cited by

6References

26Claims

0Family size

Assignee

Novartis AG · CH

Inventors

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

Key dates

Filing date	Jan 11, 2012
Grant date	Jun 11, 2013
Priority date	—
Expiry date	Jan 11, 2032

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.