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American Water Works Company, Inc (AWK)

NYSE: AWK · Water Supply · Camden, NJ · filing with the SEC since 2007
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Patents

US patents through Dec 31, 2025 · PatentsView, from the USPTO’s Open Data Portal · read Oct 27, 2026

19 patents granted to the 5 names below, as the owner printed on each patent when it was granted. A later sale, a lapse or an expiry is not read, so this is what was granted to American Water Works Company, Inc’s names, not what it holds today.

Patents granted
19
19 utility, 1976 to Dec 31, 2025
Granted in 2025
none
in the last year the record reads
Applications published
17
since 2001, to Dec 31, 2025
Names they are printed under
5
its own name, a subsidiary
By yearGrantedApplications published
'87'00'02'03'06'10'11'12'13'14'15'16'17'20'21
Each pair is one calendar year. Applications are published about eighteen months after filing, so the newest years read low.
What they are aboutgrants since 2021
Environmental technology1
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name5 counted
American Water Works Company, Inc. its own name
US, as the owner printed on each patent
14 granted
7 published
AMERICAN WATER WORKS COMPANY, INC. its own name
named as the applicant on its applications, in US
0 granted
7 published
Environmental Management Corporation a subsidiary
US, as the owner printed on each patent. 2 more under the same name are not counted (printed in KR)
3 granted
2 published
A. W. Technologies, LLC a subsidiary
US, as the owner printed on each patent
2 granted
0 published
AWIP Holdings LLC a subsidiary
named as the applicant on its applications, in US
0 granted
1 published
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Oct 12, 202111,142,470Disinfection of water mains using ultraviolet light and oxidizing agentsEnvironmental technologyAmerican Water Works Company, Inc.
Jan 7, 202010,530,110Methods of providing a temporary electrical grounding system having a magnetic component coupled to a conductive surfaceElectrical machinery, apparatus, energyAmerican Water Works Company, Inc.
Sep 5, 20179,751,778Simultaneous recovery of coagulant and acidEnvironmental technologyAmerican Water Works Company, Inc.
May 23, 20179,656,893Simultaneous anoxic biological phosphorus and nitrogen removal with energy recoveryEnvironmental technologyAmerican Water Works Company, Inc.
May 9, 20179,647,351Temporary electrical grounding system having a magnetic component coupled to a conductive surfaceElectrical machinery, apparatus, energyAmerican Water Works Company, Inc.
Mar 7, 20179,586,837Disinfection of water mains using ultraviolet lightEnvironmental technologyAmerican Water Works Company, Inc.
Nov 29, 20169,505,644Simultaneous anoxic biological phosphorus and nitrogen removalEnvironmental technologyAmerican Water Works Company, Inc.
Jun 10, 20148,747,671Simultaneous anoxic biological phosphorus and nitrogen removalEnvironmental technologyAmerican Water Works Company, Inc.
Apr 1, 20148,685,246Simultaneous anoxic biological phosphorus and nitrogen removal with energy recoveryEnvironmental technologyAmerican Water Works Company, Inc.
Jan 24, 20128,100,067Apparatus and method for the injection of viscous fertilizer below the surface of the soilOther special machinesAmerican Water Works Company, Inc.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Sep 10, 20202020/0286215SYSTEMS AND METHOD FOR REMOTE DETECTION AND PREDICTION OF TANK CORROSIONComputer technologyAWIP Holdings LLC
Aug 31, 20172017/0248333GEOTHERMAL HEATING AND COOLING SYSTEMThermal processes and apparatusAMERICAN WATER WORKS COMPANY, INC.
Jul 20, 20172017/0207595TEMPORARY ELECTRICAL GROUNDING SYSTEM HAVING A MAGNETIC COMPONENT COUPLED TO A CONDUCTIVE SURFACEElectrical machinery, apparatus, energyAMERICAN WATER WORKS COMPANY, INC. · patent 10,530,110 granted from it
Jul 13, 20172017/0198854WATER PIPE DRONE FOR DETECTING AND FIXING LEAKSMechanical elementsAMERICAN WATER WORKS COMPANY, INC.
Jun 22, 20172017/0174536DISINFECTION OF WATER MAINS USING ULTRAVIOLET LIGHT AND OXIDIZING AGENTSEnvironmental technologyAMERICAN WATER WORKS COMPANY, INC. · patent 11,142,470 granted from it
Aug 4, 20162016/0223120WATER PIPE DRONE FOR DETECTING AND FIXING LEAKSMechanical elementsAMERICAN WATER WORKS COMPANY, INC.
Jun 30, 20162016/0190743TEMPORARY ELECTRICAL GROUNDING DEVICEElectrical machinery, apparatus, energyAMERICAN WATER WORKS COMPANY, INC. · patent 9,647,351 granted from it
Dec 10, 20152015/0353388SIMULTANEOUS RECOVERY OF COAGULANT AND ACIDEnvironmental technologyAmerican Water Works Company, Inc. · patent 9,751,778 granted from it
Jan 15, 20152015/0017061DISINFECTION OF WATER MAINS USING ULTRAVIOLET LIGHTEnvironmental technologyAMERICAN WATER WORKS COMPANY, INC. · patent 9,586,837 granted from it
Sep 18, 20142014/0263042SIMULTANEOUS ANOXIC BIOLOGICAL PHOSPHORUS AND NITROGEN REMOVALEnvironmental technologyAmerican Water Works Company, Inc. · patent 9,505,644 granted from it

A patent is counted where the owner printed on it when it was granted carries the company’s own name, a former name, the name of a subsidiary its annual report lists, or its own name with a patent-holding phrase (Technology Licensing, Intellectual Property and the like), once the legal form, case and punctuation are set aside, and prints a country that name counts in. PatentsView’s data are published under the Creative Commons Attribution 4.0 licence. Source: PatentsView's granted patents and pre-grant publications, disambiguated, from the USPTO's Open Data Portal, through Dec 31, 2025, read Oct 27, 2026.

SI Assistanton AWK · research, not advice