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:
Apr. 06, 2004
Filed:
May. 21, 2001
Applicant:
Inventors:
David Lewis, Parma, IT;
David Ganderton, Devon, GB;
Brian Meakin, Batty, GB;
Gaetano Brambilla, Parma, IT;
Alessandra Ferraris, Parma, IT;
Assignee:
Chiesi Farmaceutici S.p.A., Parma, IT;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/12 ; A61K 9/72 ;
U.S. Cl.
CPC ...
A61K 9/12 ; A61K 9/72 ;
Abstract
An aerosol solution composition for use in an aerosol inhaler comprises an active material, a propellant containing a hydrofluoroalkane, a cosolvent and optionally a low volatility component to increase the mass median aerodynamic diameter (MMAD) of the aerosol particles on actuation of the inhaler. The composition is stabilized by using a small amount of mineral acid and a suitable can having part or all of its internal metallic surfaces made of stainless steel, anodized aluminium or lined with an inert organic coating.