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Pittsburgh, PA, United States of America

Allegheny Ludlum Steel Corporation

USPTO Granted Patents = 72

Trademarks = 2

Forward Citations = 604

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56 inventors (with patents filed for the assignee):

Joseph W Tommaney (5 out of 11 patents)

Donald R Zaremski (4 out of 10 patents)

Orville W Reen (4 out of 11 patents)

4. Jack M Beigay (4 out of 4 patents)

5. Paul R Borneman (4 out of 5 patents)

6. S Leslie Ames (3 out of 16 patents)

7. Robert F Miller (3 out of 5 patents)

8. Frank A Malagari, Jr (3 out of 10 patents)

9. Remus A Lula (3 out of 4 patents)

10. Harry E Deverell (3 out of 8 patents)

11. George Aggen (3 out of 4 patents)

12. Thomas H McCunn (3 out of 3 patents)

13. Joseph M Hunt (3 out of 3 patents)

14. Amitava Datta (2 out of 52 patents)

15. Robert E Maringer (2 out of 20 patents)

Core Competencies:

Molten Metal Refining

Silicon Steel Production

Annealing Separator Coating

Metal Descaling

Austenitic Stainless Steel

Weldable Stainless Steel

Grain-Oriented Silicon

Corrosion-Resistant Tubes

Strip Casting Apparatus

Amorphous Metals

Ductility Improvement

Induction Melting

72 patents: Sort by Forward Citations

1. 4615730 - Method for refining molten metal bath to control nitrogen (1986-10-07),

2. 4608100 - Method of producing thin gauge oriented silicon steel (1986-08-26),

3. 4582547 - Method for improving the annealing separator coating on silicon steel (1986-04-15),

4. 4581073 - Method for descaling metal strip (1986-04-08),

5. 4576300 - Reusable shipping container (1986-03-18),

6. 4568387 - Austenitic stainless steel for low temperature service (1986-02-04),

7. 4548655 - Method for producing cube-on-edge oriented silicon steel (1985-10-22),

8. 4545826 - Method for producing a weldable austenitic stainless steel in heavy (1985-10-08),

9. 4533409 - Method and apparatus for reducing core losses of grain-oriented silicon (1985-08-06),

10. 4533391 - Work-hardenable substantially austenitic stainless steel and method (1985-08-06),

11. 4529443 - System and method for producing steel in a top-blown vessel (1985-07-16),

12. 4529442 - Method for producing steel in a top oxygen blown vessel (1985-07-16),

13. 4529176 - Replaceable seals for ladle heaters (1985-07-16),

14. 4525620 - Method of welding ferritic and austenitic stainless steels and product (1985-06-25),

15. 4524996 - Corrosion-resistant tube assembly (1985-06-25),

Allegheny Ludlum Steel Corporation is a leading manufacturer of specialty steel alloys and various products. With a rich history spanning over a century, the company specializes in producing high-performance stainless steel, nickel alloys, and other advanced materials. These materials are widely used in industries such as aerospace, automotive, energy, and medical. Allegheny Ludlum Steel Corporation is committed to delivering superior quality and innovation, continually pushing the boundaries of what steel can do.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

72 Patents

#32 in Pittsburgh, PA

#187 in Pennsylvania

#4,870 in US

#9,927 in the World

Pittsburgh, PA, United States of America

Allegheny Ludlum Steel Corporation

Forward Citations = 604

56 inventors:

Joseph W Tommaney (5 out of 11 patents)

Donald R Zaremski (4 out of 10 patents)

Orville W Reen (4 out of 11 patents)

4. Jack M Beigay (4 out of 4 patents)

5. Paul R Borneman (4 out of 5 patents)

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