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Charlotte, NC, United States of America

Midrex Technologies, Inc.

USPTO Granted Patents = 45

CIPO Patents = 9

EPO Patents = 17

Trademarks = 1

Forward Citations = 143

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36 inventors (with patents filed for the assignee):

Gary Edward Metius (12 out of 14 patents)

James M McClelland, Jr (10 out of 12 patents)

Haruyasu Michishita (8 out of 9 patents)

4. Gregory Darel Hughes (8 out of 8 patents)

5. David C Meissner (7 out of 34 patents)

6. Todd Michael Astoria (7 out of 7 patents)

7. Stephen Craig Montague (5 out of 9 patents)

8. Mirmohammadyousef Motamedhashemi (4 out of 4 patents)

9. Brian William Voelker (4 out of 9 patents)

10. Travis Wright (3 out of 3 patents)

11. Robert B Cheeley (3 out of 3 patents)

12. Russell Kakaley (3 out of 4 patents)

13. Keith Marshall Bastow-Cox (3 out of 3 patents)

14. Vincent Chevrier (2 out of 2 patents)

15. Glenn E Hoffman (2 out of 16 patents)

Core Competencies:

Direct Reduced Iron

Carbon Content Enhancement

Hydrogen Utilization

Oxygen Injection Systems

Coke Oven Gas

Ferro-Chrome Production

Carbon Dioxide Sequestration

Gas to Liquid Process

Electric Melting Furnaces

High Temperature Metal Recovery

Synthesis Gas Production

Burden Uniformity Enhancement

45 patents: Sort by Forward Citations

1. 12497668 - Hot metal production from DRI with electric arc heating (2025-12-16),

2. 12421564 - Iron (DRI) between a DRI source and processing equipment for the DRI (2025-09-23),

3. 12098436 - Seal gas optimization systems and methods for a direct reduction process (2024-09-24),

4. 12084730 - Methods and systems for increasing the carbon content of direct reduced iron in a reduction furnace (2024-09-10),

5. 12000011 - System and method for the production of hot briquetted iron (HBI) containing flux and/or carbonaceous material at a direct reduction plant (2024-06-04),

6. 11965221 - Method and system for heating direct reduced iron (DRI) between a DRI source and processing equipment for the DRI (2024-04-23),

7. 11952638 - Direct reduction process utilizing hydrogen (2024-04-09),

8. 11920204 - Oxygen injection for reformer feed gas for direct reduction process (2024-03-05),

9. 11788159 - Integration of DR plant and electric DRI melting furnace for producing high performance iron (2023-10-17),

10. 11655511 - Seal gas optimization systems and methods for a direct reduction process (2023-05-23),

11. 11499201 - Direct reduction process utilizing hydrogen (2022-11-15),

12. 11021766 - Direct reduction with coal gasification and coke oven gas (2021-06-01),

13. 10988817 - Oxygen injection system for a direct reduction process (2021-04-27),

14. 10907224 - Direct reduction system and process utilizing a process gas direct recycle line (2021-02-02),

15. 10604815 - Direct reduction process and shaft furnace utilizing an extended flow diverter cone (2020-03-31),

Midrex Technologies, Inc. is a leading global supplier of direct reduction ironmaking technology. They offer sustainable solutions to help produce high-quality iron products efficiently and reduce environmental impact. With over 50 years of experience, Midrex has provided innovative technology and engineering expertise to steel producers worldwide. Visit their website for more information and to explore their range of solutions.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

45 Patents

#34 in Charlotte, NC

#175 in North Carolina

#7,493 in US

#14,972 in the World

Charlotte, NC, United States of America

Midrex Technologies, Inc.

Forward Citations = 143

36 inventors:

Gary Edward Metius (12 out of 14 patents)

James M McClelland, Jr (10 out of 12 patents)

Haruyasu Michishita (8 out of 9 patents)

4. Gregory Darel Hughes (8 out of 8 patents)

5. David C Meissner (7 out of 34 patents)

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