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For the Inventor, By the Inventor

Naperville, IL, United States of America

Nalco Company

USPTO Granted Patents = 386

% Expired Patents = 8.8



Trademarks = 96

Forward Citations = 2,955

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366 inventors (with patents filed for the assignee):

goldMedal Prasad Y Duggirala (21 out of 36 patents)

silverMedal Peter D Hicks (17 out of 18 patents)

bronzeMedal Sergey M Shevchenko (16 out of 25 patents)

4.  Bruce A Keiser (15 out of 42 patents)

5.  Kin-Tai Chang (14 out of 28 patents)

6.  John David Kildea (14 out of 23 patents)

7.  Weiguo Cheng (13 out of 36 patents)

8.  Mingli Wei (13 out of 33 patents)

9.  John E Hoots (13 out of 66 patents)

10.  Bo L Tran (13 out of 16 patents)

11.  Dmitri L Kouznetsov (13 out of 21 patents)

12.  Duy T Nguyen (12 out of 54 patents)

13.  David A Grattan (12 out of 12 patents)

14.  Kailas B Sawant (11 out of 14 patents)

15.  Rodney H Banks (11 out of 40 patents)


Core Competencies:
Corrosion Inhibitors
Fluid Treatment
Oil Recovery
Emulsion Resolution
Surfactants
Water Quality
Hydrocarbon Recovery
Filtration Improvement
Biocontrol
Chlorine Analysis
Scale Control
Pulping Processes

386 patents:

1. 9834732 - Development and implementation of analyzer based control system and algorithm (2017-12-05),
2. 9776105 - Method for conditioning and processing whole or thin stillage to aid in the separation and recovery of protein and oil fractions (2017-10-03),
3. 9683935 - Method to measure surfactant in fluid (2017-06-20),
4. 9682383 - Gas stream treatment process (2017-06-20),
5. 9663705 - Method for resolving emulsions in enhanced oil recovery operations (2017-05-30),
6. 9650267 - Fluid treatment reactor (2017-05-16),
7. 9631219 - Metabolic rate indicator for cellular populations (2017-04-25),
8. 9631133 - Foamers for downhole injection (2017-04-25),
9. 9611431 - Method of reducing corrosion and corrosion byproduct deposition in a crude unit (2017-04-04),
10. 9574429 - Hydrocarbon mobility and recovery through in-situ combustion with the addition of ammonia (2017-02-21),
11. 9574119 - Method of producing creping adhesive (2017-02-21),
12. 9562861 - Method of monitoring macrostickies in a recycling and paper or tissue making process involving recycled pulp (2017-02-07),
13. 9555420 - Gas stream treatment process (2017-01-31),
14. 9555364 - Acid gas scrubbing composition (2017-01-31),
15. 9550935 - Method of controlling gas hydrates in fluid systems (2017-01-24),
Company Overview
Nalco Company, headquartered in Naperville, Illinois, specializes in fluid treatment technologies that enhance industrial processes. The organization focuses on developing advanced solutions in corrosion inhibitors, surfactants, and water quality management, catering to various sectors including oil recovery and hydrocarbon processing. With a commitment to innovation, Nalco aims to improve filtration and emulsion resolution, ensuring efficient and sustainable operations for its clients across the globe.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

386 Patents

#2 in Naperville, IL

#68 in Illinois

#1,199 in US

#2,400 in the World

Naperville, IL (US)
Naperville, IL, United States of America

Nalco Company

Forward Citations = 2,955

366 inventors:

goldMedal Prasad Y Duggirala (21 out of 36 patents)

silverMedal Peter D Hicks (17 out of 18 patents)

bronzeMedal Sergey M Shevchenko (16 out of 25 patents)

4.  Bruce A Keiser (15 out of 42 patents)

5.  Kin-Tai Chang (14 out of 28 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nalco Company. Retrieved from https://idiyas.com/company/nalco-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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