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:
Feb. 01, 2005
Filed:
Apr. 18, 2001
Donghao Chen, Lexington, MA (US);
Richard P. Batycky, Newton, MA (US);
Lloyd Johnston, Belmont, MA (US);
Jeffrey Mintzes, Brighton, MA (US);
Donghao Chen, Lexington, MA (US);
Richard P. Batycky, Newton, MA (US);
Lloyd Johnston, Belmont, MA (US);
Jeffrey Mintzes, Brighton, MA (US);
Advanced Inhalation Research, Inc., Cambridge, MA (US);
The Penn State Research Foundation, Inc., University Park, PA (US);
Abstract
Spray dried particles having specified aerodynamic characteristics are produced by atomizing a liquid feed and contacting the liquid feed with a drying gas, such as, for example, air or nitrogen. The humidity of the drying gas is controlled to a value, expressed, for instance, as dew point, which is known to produce particles having a specified tap density or aerodynamic diameter. Particles having a volume median geometric diameter greater than about 5 microns and a tap density less than about 0.4 g/cmare preferred.