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Plainfield, IL, United States of America

Chicago Bridge & Iron Company

USPTO Granted Patents = 154

CIPO Patents = 74

EPO Patents = 1

Trademarks = 18

Forward Citations = 1,480

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162 inventors (with patents filed for the assignee):

Donald C Stafford (20 out of 21 patents)

Vincent F Allo (11 out of 11 patents)

John S Andrepont (8 out of 13 patents)

4. Gerald E Engdahl (6 out of 16 patents)

5. Donald N Ruehrwein (6 out of 9 patents)

6. Matloob Husain (6 out of 7 patents)

7. David M O'Meara (5 out of 5 patents)

8. Terry A Gallagher (5 out of 6 patents)

9. Daniel H Phillips (5 out of 6 patents)

10. Elmer W Rothrock (5 out of 5 patents)

11. Donald R Cutler (5 out of 5 patents)

12. Royce J Laverman (4 out of 9 patents)

13. Ban-Yen Lai (4 out of 4 patents)

14. James A Nail (4 out of 4 patents)

15. Francis V Bellafiore (4 out of 4 patents)

Core Competencies:

Anaerobic Sludge Digestion

Cryogenic Liquid Storage

Self-Jacking Scaffold

Elevated Water Storage Tanks

Floating Roof Storage Tanks

Thermal Energy Storage

Liquid Clarification

Boil-Off Gas Condensation

Centrifugal Separation

Insulation for Low-Temperature Tanks

Refrigerated Gas Storage

Ice Production Methods

154 patents: Sort by Forward Citations

1. 10988396 - Method and apparatus for anaerobic sludge digestion mixing and heat exchange (2021-04-27),

2. 10907771 - Connection for refrigerated gas storage tank (2021-02-02),

3. 9835291 - Connection for refrigerated gas storage tank (2017-12-05),

4. 9726326 - Method of constructing a storage tank for cryogenic liquids (2017-08-08),

5. 9556626 - Self-jacking scaffold for large cylindrical tanks (2017-01-31),

6. 9528282 - Freestanding elevator platform system (2016-12-27),

7. 9217255 - Self-jacking scaffold for large cylindrical tanks (2015-12-22),

8. 9150397 - Freestanding elevator platform system (2015-10-06),

9. 8820009 - Method of building elevated water storage tanks (2014-09-02),

10. 8603375 - Method of constructing a storage tank for cryogenic liquids (2013-12-10),

11. 8545132 - Method and apparatus for insulating a component of a low-temperature or cryogenic storage tank (2013-10-01),

12. 8261510 - Method of building elevated water storage tanks (2012-09-11),

13. 8240344 - Method and apparatus for insulating a component of a low-temperature or cryogenic storage tank (2012-08-14),

14. 8157432 - Method of mixing a fluid in a tank with a draft tube mixing system (2012-04-17),

15. 8061552 - Storage tank with self-draining full-contact floating roof (2011-11-22),

Chicago Bridge & Iron Company (CB&I) is a global construction and engineering company specializing in energy infrastructure projects. With expertise in designing and building complex structures, CB&I has been involved in numerous projects across the energy industry, including oil and gas, LNG, and renewable energy. The company focuses on delivering innovative solutions and sustainable infrastructure to meet the world's growing energy needs. For more information, visit the CB&I website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

154 Patents

#1 in Plainfield, IL

#160 in Illinois

#2,484 in US

#5,173 in the World

Plainfield, IL, United States of America

Chicago Bridge & Iron Company

Forward Citations = 1,480

162 inventors:

Donald C Stafford (20 out of 21 patents)

Vincent F Allo (11 out of 11 patents)

John S Andrepont (8 out of 13 patents)

4. Gerald E Engdahl (6 out of 16 patents)

5. Donald N Ruehrwein (6 out of 9 patents)

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