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Dan J. Kroll
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Fort Collins, CO, US
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Patents Grants
last 30 patents
Information
Patent Grant
Detection of per and polyfluoroalkyl substances using total organic...
Patent number
12,163,937
Issue date
Dec 10, 2024
Hach Company
Vishnu Vardhanan Rajasekharan
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Dynamic wireless information transmission
Patent number
12,108,318
Issue date
Oct 1, 2024
Hach Company
Brian Alan Harmon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dynamic wireless information transmission
Patent number
11,595,798
Issue date
Feb 28, 2023
Hach Company
Brian Alan Harmon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Alkalinity sensor
Patent number
11,029,280
Issue date
Jun 8, 2021
Hach Company
Dan Kroll
G01 - MEASURING TESTING
Information
Patent Grant
Classification of deviations in a process
Patent number
6,999,898
Issue date
Feb 14, 2006
Hach Company
Karl L. King
G01 - MEASURING TESTING
Information
Patent Grant
Method for the removal of sulfide interference in common tests for...
Patent number
6,576,143
Issue date
Jun 10, 2003
Hach Company
Dan J. Kroll
G01 - MEASURING TESTING
Information
Patent Grant
Test for chlorine in water
Patent number
6,180,412
Issue date
Jan 30, 2001
Hach Company
Dan J. Kroll
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR VERIFYING THE PLAUSIBILITY OF SENSOR INFORMATION IN A PL...
Publication number
20240385580
Publication date
Nov 21, 2024
Hach Lange GmbH
Rainer Dörken
G05 - CONTROLLING REGULATING
Information
Patent Application
ELECTROCHEMICAL CELL STIRRING
Publication number
20240069002
Publication date
Feb 29, 2024
Hach Company
Corey Alan Salzer
G01 - MEASURING TESTING
Information
Patent Application
DETECTION OF PER AND POLYFLUOROALKYL SUBSTANCES USING TOTAL ORGANIC...
Publication number
20230228726
Publication date
Jul 20, 2023
Hach Company
Vishnu Vardhanan Rajasekharan
G01 - MEASURING TESTING
Information
Patent Application
SYSTEMS AND METHODS FOR CONTROLLING NITROUS OXIDE PRODUCTION IN WAS...
Publication number
20230202889
Publication date
Jun 29, 2023
Hach Company
Vishnu RAJASEKHARAN
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
METHODS AND KITS FOR ASSAYING A LARGE FLUID VOLUME USING FLOW CYTOM...
Publication number
20230194522
Publication date
Jun 22, 2023
Hach Company
Dan KROLL
G01 - MEASURING TESTING
Information
Patent Application
DYNAMIC WIRELESS INFORMATION TRANSMISSION
Publication number
20230122443
Publication date
Apr 20, 2023
Hach Company
Brian Alan Harmon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ELECTROCHEMICAL DIGESTION
Publication number
20220187197
Publication date
Jun 16, 2022
Hach Company
Vishnu Vardhanan Rajasekharan
G01 - MEASURING TESTING
Information
Patent Application
DYNAMIC WIRELESS INFORMATION TRANSMISSION
Publication number
20210136540
Publication date
May 6, 2021
Hach Company
Brian Alan Harmon
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MEMBRANE-BASED WATER QUALITY SENSOR
Publication number
20210102914
Publication date
Apr 8, 2021
Hach Company
Corey SALZER
G01 - MEASURING TESTING
Information
Patent Application
MEMBRANE-BASED WATER QUALITY SENSOR
Publication number
20180292348
Publication date
Oct 11, 2018
Hach Company
Corey SALZER
G01 - MEASURING TESTING
Information
Patent Application
ALKALINITY SENSOR
Publication number
20180224397
Publication date
Aug 9, 2018
Hach Company
Dan J Kroll
G01 - MEASURING TESTING
Information
Patent Application
System and method for the on-demand on-line treatment of water
Publication number
20050199483
Publication date
Sep 15, 2005
Hach COmpany
Dan J. Kroll
C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information
Patent Application
Classification of deviations in a process
Publication number
20040158432
Publication date
Aug 12, 2004
Hach COmpany
Karl L. King
G05 - CONTROLLING REGULATING
Information
Patent Application
Method for the removal of sulfide interference in common tests for...
Publication number
20020000414
Publication date
Jan 3, 2002
Hach COmpany
Dan J. Kroll
G01 - MEASURING TESTING