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.:

US 6787765 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 07, 2004

Filed:

Jan. 09, 2003
Applicant:
Inventors:

Roger Guevremont, Ottawa, CA;

Randy Purves, Orleans, CA;

David Barnett, Orleans, CA;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 4/940 ;
U.S. Cl.
CPC ...
H01J 4/940 ;
Abstract

Disclosed is a high field asymmetric waveform ion mobility spectrometer (FAIMS) with optical based detection of selectively transmitted ions. Light from a light source is directed through an optical port in an electrode of the FAIMS. A light detector is provided for receiving light that is one of transmitted and scattered by the selectively transmitted ions within the FAIMS.


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