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Ecolab, Inc. (ECL)

NYSE: ECL · Soap, Detergents, Cleang Preparations, Perfumes, Cosmetics · Saint Paul, MN · filing with the SEC since 1994
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Grade5.7
◀ Past 5.2● Present 6.0▶ Future 5.7
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Patents

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

3,238 patents granted to the 22 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 Ecolab, Inc.’s names, not what it holds today.

Patents granted
3,238
3,137 utility, 91 design, 10 reissue, 1976 to Dec 31, 2025
Granted in 2025
136
Against 143 in 2024 and 129 in 2023
Applications published
2,825
147 of them in 2025
Names they are printed under
22
a subsidiary, its own name
By yearGrantedApplications published
'11'12'13'14'15'16'17'18'19'20'21'22'23'24'25
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
Basic materials chemistry321
Environmental technology54
Chemical engineering45
Organic fine chemistry32
Measurement28
Furniture, games24
Macromolecular chemistry, polymers21
Other special machines18
Textile and paper machines15
Surface technology, coating15
Medical technology15
Handling15
The main technology area of each patent, in the World Intellectual Property Organization’s 35 fields.
Under which name22 counted
ECOLAB USA INC. a subsidiary
US, as the owner printed on each patent. 16 more under the same name are not counted (printed in PH)
1,970 granted
850 published
Ecolab USA Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
1,465 published
ECOLAB INC. its own name
US, as the owner printed on each patent. 62 more under the same name are not counted (printed in PH)
794 granted
364 published
Nalco Company LLC a subsidiary
US, as the owner printed on each patent
387 granted
45 published
Ovivo Inc. a subsidiary
CA, as the owner printed on each patent
41 granted
3 published
Ovivo Inc. a subsidiary
named as the applicant on its applications, in CA
0 granted
42 published
ChemLink Laboratories, LLC a subsidiary
US, as the owner printed on each patent
15 granted
9 published
Nalco Company a subsidiary
named as the applicant on its applications, in US
0 granted
16 published
Purolite Corporation a subsidiary
US, as the owner printed on each patent
8 granted
5 published
Quantum Technical Services LLC a subsidiary
US, as the owner printed on each patent
9 granted
4 published
Nalco Canada, Inc. a subsidiary
CA, as the owner printed on each patent. 1 more under the same name are not counted (printed in US)
7 granted
0 published
Christ Water Technology AG a subsidiary
AT, as the owner printed on each patent
3 granted
3 published
Purolite Corporation a subsidiary
named as the applicant on its applications, in US
0 granted
6 published
Barclay Water Management, Inc. a subsidiary
named as the applicant on its applications, in US
0 granted
4 published
CHEMLINK LABORATORIES, LLC a subsidiary
named as the applicant on its applications, in US
0 granted
2 published
CID Lines N.V. a subsidiary
BE, as the owner printed on each patent
1 granted
1 published
NALCO JAPAN G.K. a subsidiary
JP, as the owner printed on each patent
1 granted
1 published
Purolite (China) Co., Ltd. a subsidiary
named as the applicant on its applications, in CN
0 granted
2 published
Soluscope SAS a subsidiary
FR, as the owner printed on each patent
1 granted
1 published
CID LINES N.V., A French company a subsidiary
BE, as the owner printed on each patent
0 granted
1 published
Purolite (China) Co., Ltd. a subsidiary
CN, as the owner printed on each patent
1 granted
0 published
SOLUSCOPE SAS a subsidiary
named as the applicant on its applications, in FR
0 granted
1 published
Names not counted (4)
ECOLAB INC.
Every patent under it that falls to this company prints another country (MN). 0 granted and 2 published under it are not counted.
Bro-Tech Limited
Most of its patents print US; this name counts in GB. 1 granted and 0 published under it are not counted.
DMD
Most of its patents print IT; this name counts in FR. 1 granted and 0 published under it are not counted.
DMD
Most of its patents print KR; this name counts in FR. 0 granted and 1 published under it are not counted.
Newest grantseach row opens the USPTO’s own copy
GrantedPatentTitleFieldOwner as printed
Dec 30, 202512,510,545Method and composition for rapid detection of protein soilsAnalysis of biological materialsECOLAB USA INC.
Dec 23, 202512,504,375Method for monitoring and control of a wastewater process streamMeasurementECOLAB USA INC.
Dec 23, 202512,503,814Process to optimize brown stock washing unit operationsTextile and paper machinesECOLAB USA INC.
Dec 23, 202512,503,663Cold flow additives for plastic-derived synthetic feedstockBasic materials chemistryECOLAB USA INC.
Dec 16, 202512,497,671Methods and compositions for pre-extractive beneficiation of oresOpticsECOLAB USA INC.
Dec 16, 202512,495,947Control of cleaning machine cycles using machine visionFurniture, gamesECOLAB USA INC.
Dec 16, 202512,495,945Dishwasher sump and dishwasher apparatusFurniture, gamesECOLAB USA INC.
Dec 2, 202512,486,476Ware washing solution containing oxidized starchBasic materials chemistryECOLAB USA INC.
Dec 2, 202512,486,474PPE-free tablet degreaser and multipurpose cleanerBasic materials chemistryECOLAB USA INC.
Nov 25, 202512,480,149Method for the rapid detection of bacterial spores in an industrial processBiotechnologyECOLAB USA INC.
Newest applications publishedan application is a clue, never a plan
PublishedApplicationTitleFieldOwner as printed
Dec 25, 20252025/0388992COMPOSITIONS AND METHODS FOR IMPROVEMENT OF BLAST FURNACE PRODUCTIONMaterials, metallurgyECOLAB USA INC.
Dec 25, 20252025/0388837HIGH ALKALINE WAREWASH DETERGENT WITH ENHANCED SCALE CONTROL AND SOIL DISPERSIONBasic materials chemistryEcolab USA Inc.
Dec 25, 20252025/0388835CONCENTRATED CONTROLLED FOAM DETERGENTBasic materials chemistryEcolab USA Inc.
Dec 25, 20252025/0387807METHODS AND SYSTEMS FOR DETECTING AND CONTROLLING THE DOSAGE AND RESIDUAL CONCENTRATION OF HARD SURFACE CLEANERS AND RINSE AIDS IN AN AUTOMOTIVE PARTS WASHERChemical engineeringEcolab USA Inc.
Dec 25, 20252025/0387792COMPOSITIONS AND METHODS FOR FROTH MODIFICATIONChemical engineeringEcolab USA Inc.
Dec 18, 20252025/0382550SUPER-GEMINI TYPE SURFACTANTSMacromolecular chemistry, polymersEcolab USA Inc.
Dec 18, 20252025/0382535NEW ANTIFOULANT FOR REFINERY APPLICATIONSBasic materials chemistryECOLAB USA INC.
Dec 18, 20252025/0382203RECOVERY OF FLUORIDE FROM FLUORIDE-CONTAINING WASTE WATER THROUGH MEMBRANE SEPARATIONChemical engineeringEcolab USA Inc.
Dec 4, 20252025/0369124IMIDAZOLINE-SUGAR CONJUGATE COMPOSITIONS AND METHODS FOR INHIBITING CORROSIONOrganic fine chemistryECOLAB USA INC.
Dec 4, 20252025/0369123ALKOXYIMIDAZOLINIUM QUATERNARY SALT COMPOSITIONS AND METHODS OF USING THE COMPOSITIONS TO INHIBIT CORROSIONSurface technology, coatingECOLAB USA INC.
What it applied for, 2024 to 2025: Basic materials chemistry 152 · Organic fine chemistry 22 · Environmental technology 20 · Chemical engineering 16 · Textile and paper machines 16 · Other special machines 16.

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 ECL · research, not advice