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:
Sep. 29, 2026
Filed:
Jun. 27, 2023
Applicant:
Hach Company, Loveland, CO (US);
Inventor:
Amit Das, Fort Collins, CO (US);
Assignee:
HACH COMPANY, Loveland, CO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 33/00 (2006.01); G01N 33/14 (2006.01); G01N 21/64 (2006.01); G01N 21/77 (2006.01); G01N 31/22 (2006.01);
U.S. Cl.
CPC ...
G01N 33/0039 (2013.01); G01N 33/14 (2013.01); G01N 21/643 (2013.01); G01N 21/77 (2013.01); G01N 31/223 (2013.01);
Abstract
An embodiment provides a method for measuring ozone in a sample, including: introducing an indigo-based indicator to a sample, wherein the sample contains an amount of ozone and the introducing causes a change in fluorescence intensity of the solution; introducing an ammonium salt to the sample; and measuring the amount of ozone in the sample by measuring the change in intensity of the fluorescence.
Das, Amit. (2026). Mitigation of free chlorine interference for ozone detection using an indigo-based indicator (U.S. Patent No. 12748090). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12748090
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile