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Milwaukee, WI, United States of America

Aqua-Chem, Inc.

USPTO Granted Patents = 46

% Expired Patents = 4.3

Trademarks = 14

Forward Citations = 668

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51 inventors (with patents filed for the assignee):

Burnett M Schneider (4 out of 6 patents)

Glenn D Craig (4 out of 4 patents)

Tod A Stansfield (3 out of 3 patents)

4. Roy M Rulseh (3 out of 3 patents)

5. David T Feuling (3 out of 3 patents)

6. Richard M Ahlgren (3 out of 3 patents)

7. Hyunjae Park (2 out of 2 patents)

8. Todd L Anderson (2 out of 2 patents)

9. Brian W Huibregtse (2 out of 2 patents)

10. Stephen R Wilkinson (2 out of 2 patents)

11. Wilfred L Ayala (2 out of 2 patents)

12. Robert A Chronowski (2 out of 3 patents)

13. Donald G Wang (2 out of 2 patents)

14. Gustav A Rehm (2 out of 2 patents)

15. Paul G La Haye (2 out of 4 patents)

Core Competencies:

Low Emission Burners

Heat Exchanger

Flue Gas Recirculation

Pyrolytic Incineration

Waste Fuel Combustion

Solar Desalting

Electrodialysis

Vapor Compression Distiller

Fluidized Bed Combustion

Sterile Docking System

Scale Inhibitor

Ultrafiltration

46 patents: Sort by Forward Citations

1. 6558153 - Low pollution emission burner (2003-05-06),

2. 6470835 - Plate-type heat exchanger for exhaust gas heat recovery (2002-10-29),

3. 6357396 - Plate type heat exchanger for exhaust gas heat recovery (2002-03-19),

4. 5522696 - Multiple-shutter throttle characterization assembly for burners (1996-06-04),

5. 5348651 - Membrane simulator (1994-09-20),

6. 5335628 - Integrated boiler/fuel cell system (1994-08-09),

7. 5195883 - Flue gas recirculation system with fresh air purge for burners (1993-03-23),

8. 5044326 - Flammable waste liquid combustion system and method (1991-09-03),

9. 5040716 - Pipe welding apparatus (1991-08-20),

10. 4814079 - Spirally wrapped reverse osmosis membrane cell (1989-03-21),

11. 4800824 - Pyrolytic incineration system (1989-01-31),

12. 4730435 - Sterile docking system for filling IV bags (1988-03-15),

13. 4716843 - Waste fuel combustion system (1988-01-05),

14. 4713195 - Scale inhibitor (1987-12-15),

15. 4659305 - Flue gas recirculation system for fire tube boilers and burner therefor (1987-04-21),

Company Overview

Aqua-Chem, Inc., based in Milwaukee, WI, specializes in advanced technologies for water treatment and energy efficiency. The company focuses on developing innovative solutions such as low pollution emission burners, heat exchangers, and flue gas recirculation systems. Their expertise extends to waste fuel combustion and solar desalting processes, contributing to sustainable practices in industrial applications. Aqua-Chem also explores fluidized bed combustion and electrodialysis methods, enhancing water purification and resource recovery efforts.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

46 Patents

#39 in Milwaukee, WI

#193 in Wisconsin

#7,600 in US

#15,122 in the World

Milwaukee, WI, United States of America

Aqua-Chem, Inc.

Forward Citations = 668

51 inventors:

Burnett M Schneider (4 out of 6 patents)

Glenn D Craig (4 out of 4 patents)

Tod A Stansfield (3 out of 3 patents)

4. Roy M Rulseh (3 out of 3 patents)

5. David T Feuling (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Aqua-Chem, Inc.. Retrieved from https://idiyas.com/company/aqua-chem

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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