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. 18, 2023
Filed:
Apr. 12, 2021
Applicant:
King Technology Inc., Hopkins, MN (US);
Inventors:
David Guy, Maple Grove, MN (US);
Jeffrey D. Johnson, Edina, MN (US);
Paul Freeberg, South St. Paul, MN (US);
Terry Goeman, Minnetonka, MN (US);
Lyle Enderson, Elk River, MN (US);
Joseph A King, Wayzata, MN (US);
Randy Roseth, Chanhassen, MN (US);
Assignee:
KING TECHNOLOGY, INC., Minnetonka, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/68 (2023.01); C02F 1/76 (2023.01);
U.S. Cl.
CPC ...
C02F 1/685 (2013.01); C02F 1/76 (2013.01);
Abstract
A method of maintaining a safe free chlorine level in a body of water for recreational use where the free chlorine level at a harmful level comprises determining if the free chlorine level in the body of water is above a safe level and adding sufficient DMH to the body of water to bring the free chlorine down to a safe level.