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. 01, 2009
Filed:
May. 05, 2008
Tung T. Nguyen, Midlothian, VA (US);
Nina Brown, Sterling, VA (US);
Jui C. Lin, Fairfield, CA (US);
Stephen Pham, Chesterfield, VA (US);
Kenneth A. Cox, Powhatan, VA (US);
Douglas D. Mcrae, Chesterfield, VA (US);
Walter A. Nichols, Chesterfield, VA (US);
Tung T. Nguyen, Midlothian, VA (US);
Nina Brown, Sterling, VA (US);
Jui C. Lin, Fairfield, CA (US);
Stephen Pham, Chesterfield, VA (US);
Kenneth A. Cox, Powhatan, VA (US);
Douglas D. McRae, Chesterfield, VA (US);
Walter A. Nichols, Chesterfield, VA (US);
Philip Morris USA Inc., Richmond, VA (US);
Abstract
Liquid nanoscale particle precursor materials for generating nanoscale particles include at least one high volatility carrier and a second component. A nanoscale particle generating device generates nanoscale particles by passing a liquid nanoscale particle precursor material through a flow passage heated to convert the carrier into a vapor and the second component into nanoscale particles. The nanoscale particles preferably consist essentially of the second component and can consist essentially of dry, solid particles. The particle generator can be incorporated in a hand held inhaler, and can be delivered to a targeted portion of the lung using the inhaler. Composite controlled release particles of micron or nanoscale size can be produced by flowing a solution of medicament, control release agent and carrier liquid through a capillary heater.