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Pittsburgh, PA, United States of America

Wean United, Inc.

USPTO Granted Patents = 59

Forward Citations = 375

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46 inventors (with patents filed for the assignee):

Joseph I Greenberger (9 out of 9 patents)

Vladimir B Ginzburg (4 out of 60 patents)

Harry Calhoon Ledebur (4 out of 4 patents)

4. Klaus Rehag (4 out of 9 patents)

5. Raymond F Boshold (4 out of 5 patents)

6. Robert L Kerr (3 out of 3 patents)

7. David W George (3 out of 3 patents)

8. Oscar Lewis Yeager (2 out of 2 patents)

9. Hans Meurer (2 out of 5 patents)

10. James F Deffenbaugh (2 out of 2 patents)

11. Francis J Kent (2 out of 2 patents)

12. Paul W Miller (2 out of 2 patents)

13. Heinrich Steinbrecher (2 out of 4 patents)

14. John H Miles (2 out of 2 patents)

15. Horst Stinnertz (1 out of 12 patents)

Core Competencies:

Rolling Mill

Electric Arc Furnace

Variable Crown Rolls

Cooling Apparatus

Flash Welders

Tension Device

Extrusion

Composite Roll

59 patents: Sort by Forward Citations

1. 4724757 - Press control and arrangement for compressing particleboard (1988-02-16),

2. 4656905 - Shearing apparatus (1987-04-14),

3. 4656859 - Rolling mill stand employing variable crown rolls and associated method (1987-04-14),

4. 4644558 - Roof assembly for an electric arc furnace (1987-02-17),

5. 4638492 - Roof assembly for an electric arc furnace (1987-01-20),

6. 4617815 - Apparatus for descaling hot strip in a rolling mill (1986-10-21),

7. 4599883 - Tandem rolling mill (1986-07-15),

8. 4597521 - Rotary notcher for a joined metallic strip (1986-07-01),

9. 4595358 - Re-radiating heat shield (1986-06-17),

10. 4577482 - Method and apparatus for treating work rolls in a rolling mill (1986-03-25),

11. 4553245 - Roof assembly for an electric arc furnace (1985-11-12),

12. 4505771 - Arrangement, apparatus, and method to form laminates, and the like such (1985-03-19),

13. 4488710 - Apparatus for optimizing the cooling of a generally circular (1984-12-18),

14. 4425928 - Liquid discharge apparatus (1984-01-17),

15. 4411713 - Shell for a composite roll (1983-10-25),

Wean United, Inc., based in Pittsburgh, PA, specializes in advanced rolling mill technology and related systems. The company focuses on the development and manufacturing of equipment such as electric arc furnaces, variable crown rolls, and cooling apparatuses. With expertise in flash welders and tension devices, Wean United plays a crucial role in enhancing the efficiency and performance of metal processing operations. Their innovative solutions cater to the evolving needs of the steel and metal industries, ensuring high-quality production standards.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

59 Patents

#50 in Pittsburgh, PA

#229 in Pennsylvania

#6,068 in US

#12,219 in the World

Pittsburgh, PA, United States of America

Wean United, Inc.

Forward Citations = 375

46 inventors:

Joseph I Greenberger (9 out of 9 patents)

Vladimir B Ginzburg (4 out of 60 patents)

Harry Calhoon Ledebur (4 out of 4 patents)

4. Klaus Rehag (4 out of 9 patents)

5. Raymond F Boshold (4 out of 5 patents)

Please report any incorrect information to [email protected]

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