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:
May. 09, 2006
Filed:
Jun. 01, 2001
Applicants:
Jean-rene Authelin, Saint Germain les Arpajon, FR;
Patrick Hosek, Kronberg im Taunus, DE;
Inventors:
Jean-Rene Authelin, Saint Germain les Arpajon, FR;
Patrick Hosek, Kronberg im Taunus, DE;
Assignee:
Aventis Pharma Limited, West Malling, GB;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/00 (2006.01); A61K 9/14 (2006.01); A61K 31/357 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention is a method of milling materials to form a fine powder with a median particle size below 10 micrometer which is suitable for inhalation and which has substantially no amorphous content generated during milling. The method is particularly suitable for milling materials which are soft. The method comprises milling the material in a fluid energy mill at reduced temperature using helium, or helium mixed with another gas, as milling fluid. Temperatures of −30° C. or less are used.