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Naperville, IL, United States of America

Nalco Chemical Company

USPTO Granted Patents = 1,167

EPO Patents = 8

Trademarks = 69

Forward Citations = 17,739

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746 inventors (with patents filed for the assignee):

Dodd W Fong (82 out of 83 patents)

John E Hoots (44 out of 66 patents)

Manian Ramesh (34 out of 48 patents)

4. Kenneth G Phillips (32 out of 32 patents)

5. Donald A Johnson (25 out of 40 patents)

6. John R Hurlock (22 out of 22 patents)

7. Peter E Reed (21 out of 43 patents)

8. Edward G Ballweber (21 out of 21 patents)

9. Charles C Payne (20 out of 21 patents)

10. Ronald J Allain (20 out of 21 patents)

11. James F Kneller (18 out of 26 patents)

12. David R Cosper (18 out of 19 patents)

13. Anthony G Sommese (17 out of 29 patents)

14. William F McCoy (17 out of 25 patents)

15. Shu-Jen W Huang (16 out of 16 patents)

Core Competencies:

Silica Scale Inhibition

Polymer Coagulants

Water Treatment

Bromine Formulations

Papermaking Retention

Biological Fouling Control

Colloidal Borosilicates

Fluorescent Polymers

Heavy Metal Removal

Microbiological Activity Control

Cationic Dispersion Polymers

Wastewater Treatment

1,167 patents: Sort by Forward Citations

1. 6461518 - Method for inhibiting the formation and deposition of silica scale in water systems (2002-10-08),

2. 6451169 - Structurally rigid polymer coagulants as retention and drainage aids in papermaking (2002-09-17),

3. 6444091 - Structurally rigid nonionic and anionic polymers as retention and drainage aids in papermaking (2002-09-03),

4. 6440476 - Method to improve quality and appearance of leafy vegetables by using stabilized bromine (2002-08-27),

5. 6436711 - Fluorometric control of aromatic oxygen scavengers in a boiler system (2002-08-20),

6. 6432271 - Method of increasing retention and drainage in papermaking using high molecular weight water-soluble anionic or nonionic dispersion polymers (2002-08-13),

7. 6426383 - Preparation of water soluble polymer dispersions from vinylamide monomers (2002-07-30),

8. 6423801 - Branched polyammonium compounds of high molecular weight and processes for producing said compounds (2002-07-23),

9. 6423267 - Stable oxidizing bromine formulations, method of manufacture and uses thereof for biofouling control (2002-07-23),

10. 6419879 - Composition and method for controlling biological growth using stabilized sodium hypobromite in synergistic combinations (2002-07-16),

11. 6413433 - Method for dewatering of sludge (2002-07-02),

12. 6403726 - Water soluble polymer containing dithiocarbamate functionalities (2002-06-11),

13. 6398967 - Method of clarifying water using low molecular weight cationic dispersion polymers (2002-06-04),

14. 6380431 - Fluorescent monomers (2002-04-30),

15. 6379720 - Compositions containing hops extract and their use in water systems and process streams to control biological fouling (2002-04-30),

Nalco Chemical Company is a global leader in water, hygiene, and energy technologies and services. With over 90 years of experience, Nalco provides integrated solutions that help businesses achieve operational efficiency, reduce environmental impact, and enhance safety. Through innovative chemistry, data-driven insights, and specialized expertise, Nalco assists customers across various industries in optimizing their water and energy usage, improving productivity, and ensuring sustainable growth.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

1,167 Patents

#1 in Naperville, IL

#24 in Illinois

#428 in US

#846 in the World

Naperville, IL, United States of America

Nalco Chemical Company

Forward Citations = 17,739

746 inventors:

Dodd W Fong (82 out of 83 patents)

John E Hoots (44 out of 66 patents)

Manian Ramesh (34 out of 48 patents)

4. Kenneth G Phillips (32 out of 32 patents)

5. Donald A Johnson (25 out of 40 patents)

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