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Pittsburgh, PA, United States of America

Elkem Metals Company

USPTO Granted Patents = 27

Trademarks = 5

Forward Citations = 149

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34 inventors (with patents filed for the assignee):

Thomas K McCluhan (6 out of 7 patents)

Robert H Kaiser (5 out of 6 patents)

George A Salensky (4 out of 20 patents)

4. Kuldip S Chopra (4 out of 8 patents)

5. Donald B Craig (3 out of 3 patents)

6. James E Wells, Iii (3 out of 6 patents)

7. Nicholas J Pappas (3 out of 4 patents)

8. Young E Lee (3 out of 3 patents)

9. Richard A Flinn (2 out of 5 patents)

10. Paul K Trojan (2 out of 3 patents)

11. Paul J Bilek (2 out of 3 patents)

12. Henry F Linebarger (2 out of 2 patents)

13. John F Bortnik (2 out of 2 patents)

14. Donald A Clayman (2 out of 2 patents)

15. Scott A Baker (2 out of 2 patents)

27 patents: Sort by Forward Citations

1. 5932086 - Process for making manganese (1999-08-03),

2. 5820842 - Silicon refining process (1998-10-13),

3. 5362440 - Ferrophosphorus refining process (1994-11-08),

4. 5149364 - Desulfurization agent (1992-09-22),

5. 5078784 - Desulfurization agent (1992-01-07),

6. 5061672 - Active mass for making organohalosilanes (1991-10-29),

7. 4941914 - Desulfurization agent (1990-07-17),

8. 4816230 - System for recycling fines to hollow electrode (1989-03-28),

9. 4799955 - Soft composite metal powder and method to produce same (1989-01-24),

10. 4752327 - Dephosphorization process for manganese alloys (1988-06-21),

11. 4749549 - Gray cast iron inoculant (1988-06-07),

12. 4684403 - Dephosphorization process for manganese-containing alloys (1987-08-04),

13. 4676970 - Method for producing metal sulfide and the product produced therefrom (1987-06-30),

14. 4666516 - Gray cast iron inoculant (1987-05-19),

15. 4592538 - Apparatus for producing predominately iron alloy containing magnesium (1986-06-03),

Elkem Metals Company is a leading global supplier of metals and alloys. With a legacy of over 100 years, Elkem Metals offers a wide range of high-quality products for diverse industries including automotive, aerospace, electronics, and renewable energy. They specialize in manufacturing and distributing silicon-based alloys, ferrosilicon, specialty alloys, carbon-based materials, and microsilica. The company is committed to sustainable practices and continuous innovation to meet the evolving needs of their customers.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

27 Patents

#70 in Pittsburgh, PA

#452 in Pennsylvania

#11,990 in US

#23,271 in the World

Pittsburgh, PA, United States of America

Elkem Metals Company

Forward Citations = 149

34 inventors:

Thomas K McCluhan (6 out of 7 patents)

Robert H Kaiser (5 out of 6 patents)

George A Salensky (4 out of 20 patents)

4. Kuldip S Chopra (4 out of 8 patents)

5. Donald B Craig (3 out of 3 patents)

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