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. 14, 2009
Filed:
Nov. 10, 2005
Brian L. Frey, Madison, WI (US);
Lloyd M. Smith, Madison, WI (US);
Michael S. Westphall, Fitchburg, WI (US);
Brian L. Frey, Madison, WI (US);
Lloyd M. Smith, Madison, WI (US);
Michael S. Westphall, Fitchburg, WI (US);
Wisconsin Alumni Research Foundation, Madison, WI (US);
Abstract
This invention provides methods, devices and device components for preparing ions from liquid samples containing chemical species and methods and devices for analyzing chemical species in liquid samples. The present invention provides an ion source for generating analyte ions having a selected charge state distribution, such as a reduced charged state distribution, that may be effectively interfaced with a variety of charged particle analyzers, including virtually any type of mass spectrometer.