Patent · US Active

Method of making pharmaceutical multiparticulates

US7951403B2 · kind B2 · utility

2Cited by

121References

6Claims

0Family size

Assignee

PFIZER INC. · US

Inventors

Dwayne T. Friesen · Bend, US
Marshall Crew · Bend, US
Roderick J. Ray · Bend, US
Leah E. Appel · Bend, US

Key dates

Filing date	Dec 3, 2004
Grant date	May 31, 2011
Priority date	—
Expiry date	Apr 9, 2029

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P31/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A process for forming drug multiparticulates having improved drug crystallinity is disclosed, comprising modifying a conventional melt-congeal process by adding a volatile cospecies either to the molten mixture or to the process atmosphere, or to both.

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