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:
Aug. 23, 2022
Filed:
Jun. 06, 2019
Applicant:
Hach Company, Loveland, CO (US);
Inventors:
Amit Das, Timnath, CO (US);
Darren Kent MacFarland, Windsor, CO (US);
Angella Nicholle Greenawalt, Fort Collins, CO (US);
Daniel Gustav Mieritz, Fort Collins, CO (US);
Assignee:
HACH COMPANY, Loveland, CO (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/64 (2006.01); G01N 33/18 (2006.01);
U.S. Cl.
CPC ...
G01N 21/643 (2013.01); G01N 33/18 (2013.01); G01N 2021/6439 (2013.01); G01N 2021/6443 (2013.01);
Abstract
An embodiment provides a method for measuring free chlorine in a solution, including: preparing a thiocarbamate-based indicator; introducing the thiocarbamate-based indicator to a solution, wherein the solution contains an amount of free chlorine and the introducing causes a change in fluorescence of the solution; and measuring the amount of free chlorine in the solution by measuring a change in intensity of the fluorescence. Other aspects are described and claimed.