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:
Mar. 05, 2019
Filed:
Mar. 23, 2017
Applicant:
Naturion Pte. Ltd., Bukit, Merah Central, SG;
Inventor:
Warren Edwin Guthrie, West Olive, MI (US);
Assignee:
NATURION PTE. LTD., Merah Central, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 27/416 (2006.01); G01N 27/70 (2006.01); H01J 49/02 (2006.01);
U.S. Cl.
CPC ...
G01N 27/416 (2013.01); G01N 27/70 (2013.01); H01J 49/025 (2013.01);
Abstract
A method and device for measuring ion concentration in a defined space including disposing at least one conductive surface in a defined space, generating a flow of ions from an ion generator having an anode and a cathode into the defined space, measuring one of voltage across or direct current (DC) through a resistor connected between the cathode and the at least one conductive surface, and determining ion concentration in the defined space based upon a proportionality of ion concentration to the measured voltage or current.