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:
Dec. 25, 2012
Filed:
Sep. 16, 2002
Andrew Bruce Brown, Durham, NC (US);
Michael Mary Van Oort, Durham, NC (US);
Andrew Bruce Brown, Durham, NC (US);
Michael Mary Van Oort, Durham, NC (US);
Glaxo Group Limited, Greenforo, Middlesex, GB;
Abstract
A dry powder pharmaceutical composition comprising (i) a medicament particle fraction comprising medicament particles with an aerodynamic diameter no greater than 10 μm; and (ii) at least 50% of a non-respirable excipient fraction comprising low density excipient particles with an aerodynamic diameter greater than 10 μm and a geometric diameter greater than 30 μm. In additional embodiments of the invention, the pharmaceutical composition includes a respirable excipient fraction comprising excipient particles with an aerodynamic diameter no greater than 10 μm. In a preferred embodiment of the invention, the non-respirable excipient particles include pores adapted to receive a portion of the respirable excipient fraction and/or the medicament fraction.