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Trademarks = 1

Forward Citations = 42

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8 inventors (with patents filed for the assignee):

Richard J Hartman (3 out of 4 patents)

Libor F Rostik (2 out of 3 patents)

Dieter Figge (1 out of 32 patents)

4. Lloyd M Schmelzle (1 out of 6 patents)

5. Peter Fink (1 out of 7 patents)

6. Harry D Hunt (1 out of 1 patent)

7. Richard T Jaffre (1 out of 1 patent)

8. Peter Wright (1 out of 1 patent)

7 patents: Sort by Forward Citations

1. 7360969 - Z-shaped sheet piling (2008-04-22),

2. 7168891 - Z-shaped sheet piling (2007-01-30),

3. 7018140 - Z-shaped sheet piling (2006-03-28),

4. 5685524 - Direct ironmaking or steelmaking apparatus using self-reducing iron (1997-11-11),

5. 5133205 - System and process for forming thin flat hot rolled steel strip (1992-07-28),

6. 4824492 - Method for producing a precipitation hardenable martensitic low alloy (1989-04-25),

7. 4744406 - Horizontal continuous casting apparatus with break ring formed integral (1988-05-17),

Chaparral Steel Company is a leading producer of structural steel products in North America. With a focus on quality and customer satisfaction, Chaparral offers a wide range of steel products for construction, infrastructure, and industrial applications. The company is known for its innovative solutions and commitment to sustainability in the steel industry.

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

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USPTO Data Jan 1 1976 - Dec 9 2025

7 Patents

#2 in Midlothian, TX

#2,496 in Texas

#38,761 in US

Midlothian, TX, United States of America

Chaparral Steel Company