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:
Oct. 08, 2002
Filed:
Apr. 21, 2000
Applicant:
Inventors:
Assignee:
Ontario Inc., Concord, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N 3/312 ; A61K 4/900 ; A61L 9/04 ;
U.S. Cl.
CPC ...
A01N 3/312 ; A61K 4/900 ; A61L 9/04 ;
Abstract
Improved formulations for detecting asthma are disclosed. The formulations comprise methacholine or histamine in a dry particulate form wherein the particles are of a respirable size, preferably 2 &mgr;m to 5 &mgr;m. The dry formulations can be inhaled directly from an inhaler and can be used to detect airway narrowing which is diagnostic of asthma.