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Zurich, Switzerland

Midrex International, B.v., Rotterdam, Zurich Branch

USPTO Granted Patents = 26

CIPO Patents = 1

EPO Patents = 1

Trademarks = 5

Forward Citations = 298

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38 inventors (with patents filed for the assignee):

David C Meissner (14 out of 34 patents)

Glenn E Hoffman (8 out of 16 patents)

Kyle J Shoop (3 out of 3 patents)

4. Stephen Craig Montague (2 out of 9 patents)

5. Ronald D Gray (2 out of 7 patents)

6. Gary Edward Metius (2 out of 14 patents)

7. Brian William Voelker (2 out of 9 patents)

8. Winston L Tennies (2 out of 3 patents)

9. Jimmy D Sloop (2 out of 2 patents)

10. James A Lepinski (2 out of 2 patents)

11. Thomas H Boyd (2 out of 2 patents)

12. Frank V Summers (2 out of 4 patents)

13. Ronald Brown (2 out of 2 patents)

14. Shoichi Kikuchi (1 out of 25 patents)

15. Isao Kobayashi (1 out of 30 patents)

26 patents: Sort by Forward Citations

1. 6749664 - Furnace hearth for improved molten iron production and method of operation (2004-06-15),

2. 6685761 - Method for producing beneficiated titanium oxides (2004-02-03),

3. 6648942 - Method of direct iron-making / steel-making via gas or coal-based direct reduction and apparatus (2003-11-18),

4. 6602317 - Method and apparatus for controlling temperature uniformity of the burden in a direct reduction shaft furnace (2003-08-05),

5. 6582491 - Method for producing molten iron in duplex furnaces (2003-06-24),

6. 6413295 - Iron production method of operation in a rotary hearth furnace and improved furnace apparatus (2002-07-02),

7. 6214087 - Treatment of iron oxide agglomerates before introduction into furnace (2001-04-10),

8. 6214086 - Direct reduced iron discharge system and method (2001-04-10),

9. 6200363 - Direct reduced iron hot/cold discharge system (2001-03-13),

10. 6146442 - Apparatus and method for introducing gas into a shaft furnace without (2000-11-14),

11. 5885521 - Apparatus for rapid reduction of iron oxide in a rotary hearth furnace (1999-03-23),

12. 5730775 - Method for rapid reduction of iron oxide in a rotary hearth furnace (1998-03-24),

13. 5674308 - Spouted bed circulating fluidized bed direct reduction system and method (1997-10-07),

14. 5647887 - Fluidizable bed co-processing fines in a direct reduction system (1997-07-15),

15. 5618032 - Shaft furnace for production of iron carbide (1997-04-08),

Midrex International B.V., Rotterdam, Zurich Branch is a global leader in the development, engineering, and manufacturing of direct reduction technology for ironmaking. With over 50 years of experience, Midrex has provided innovative solutions to enable safe, reliable, and energy-efficient production of direct reduced iron (DRI) and hot briquetted iron (HBI). Their advanced technologies and expertise have revolutionized the steel industry, helping clients achieve sustainable production while reducing environmental impact. To learn more about their cutting-edge direct reduction technology and solutions, visit their website.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

26 Patents

#41 in Zurich

#475 in Switzerland

#24,042 in the World

Zurich, Switzerland

Midrex International, B.v., Rotterdam, Zurich Branch

Forward Citations = 298

38 inventors:

David C Meissner (14 out of 34 patents)

Glenn E Hoffman (8 out of 16 patents)

Kyle J Shoop (3 out of 3 patents)

4. Stephen Craig Montague (2 out of 9 patents)

5. Ronald D Gray (2 out of 7 patents)

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