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Mishawaka, IN, United States of America

National Steel Corporation

USPTO Granted Patents = 134

Trademarks = 1

Forward Citations = 1,699

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147 inventors (with patents filed for the assignee):

William T Saunders (23 out of 62 patents)

Lowell W Austin (11 out of 14 patents)

John R Smith (6 out of 6 patents)

4. Kent W Loest (5 out of 5 patents)

5. David A Chatfield (4 out of 4 patents)

6. William D Bingle (4 out of 4 patents)

7. Christopher C Jakimowicz (3 out of 3 patents)

8. Walter A Wilson (3 out of 6 patents)

9. Vernon R Ewing (3 out of 3 patents)

10. Gordon L Peters (3 out of 3 patents)

11. Winfield M Hass (3 out of 3 patents)

12. Howard E Niehaus (3 out of 3 patents)

13. Carmen C Manzonelli (3 out of 3 patents)

14. Charles M Benton (3 out of 7 patents)

15. Judson W Martt (3 out of 3 patents)

Core Competencies:

Tundish Fluxing Process

Cold Rolled Steel Sheet

Motor Lamination Steel

Continuous Casting

Coke Oven Battery

Hot Dip Coating

Steel Strip Annealing

Induction Heat Treating

Electroplating Process

Drawn And Ironed Containers

Coke Oven Emission Control

Reinforcing Sheet Material

134 patents: Sort by Forward Citations

1. 6516870 - Tundish fluxing process (2003-02-11),

2. 6143100 - Bake-hardenable cold rolled steel sheet and method of producing same (2000-11-07),

3. 6007642 - Super low loss motor lamination steel (1999-12-28),

4. 5645121 - Method of continuous casting using sealed tundish and improved tundish (1997-07-08),

5. 5600564 - Coke oven battery with communication system (1997-02-04),

6. 5571328 - Bearing support for submerged rolls in hot dip coating operation (1996-11-05),

7. 5544868 - Blow pipe and gas lance for blast furance (1996-08-13),

8. 5485387 - Method and apparatus for performing cup earing test (1996-01-16),

9. 5174822 - Steel strip annealing and coating apparatus (1992-12-29),

10. 5099780 - Bearing support for hot dip metal coating roll (1992-03-31),

11. 5078089 - Oil spray coating booth (1992-01-07),

12. 5007318 - Metal strip edge trimming apparatus (1991-04-16),

13. 4959939 - Building panel mounting system (1990-10-02),

14. 4945746 - Containment fence for runout table (1990-08-07),

15. 4886247 - Ceramic brick retainer band for steel ladle (1989-12-12),

National Steel Corporation is a leading steel manufacturing company specializing in the production of high-quality steel products. With a strong commitment to excellence, we offer a wide range of steel solutions for various industries, including construction, automotive, and infrastructure. Our state-of-the-art facilities, advanced technology, and skilled workforce ensure the delivery of durable and reliable steel products to our global customers. At National Steel Corporation, we strive to meet the highest industry standards, focusing on quality, innovation, and customer satisfaction.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

134 Patents

#1 in Mishawaka, IN

#52 in Indiana

#2,782 in US

#5,845 in the World

Mishawaka, IN, United States of America

National Steel Corporation

Forward Citations = 1,699

147 inventors:

William T Saunders (23 out of 62 patents)

Lowell W Austin (11 out of 14 patents)

John R Smith (6 out of 6 patents)

4. Kent W Loest (5 out of 5 patents)

5. David A Chatfield (4 out of 4 patents)

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