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Cleveland, OH, United States of America

Stemcor Corporation

USPTO Granted Patents = 32

Trademarks = 3

Forward Citations = 725

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40 inventors (with patents filed for the assignee):

Wolfgang D Boecker (8 out of 16 patents)

Tadeusz M Korzekwa (5 out of 7 patents)

Miroslav Ondris (4 out of 9 patents)

4. Sai-Kwing Lau (4 out of 17 patents)

5. Stephen Chwastiak (4 out of 11 patents)

6. Gary W Deren (3 out of 3 patents)

7. Ajit Sane (2 out of 28 patents)

8. Hisao Yamada (2 out of 2 patents)

9. Carl H McMurtry (2 out of 21 patents)

10. Jonathan J Kim (2 out of 20 patents)

11. Steven J Waisala (2 out of 4 patents)

12. Laurence N Hailey (2 out of 8 patents)

13. Paul V Cooper (1 out of 128 patents)

14. John D Ten Eyck (1 out of 10 patents)

15. Martin R Kasprzyk (1 out of 14 patents)

32 patents: Sort by Forward Citations

1. 5202105 - Method for making hexagonal silicon carbide platelets with the addition (1993-04-13),

2. 5194407 - Molten metal-resistant ceramic fiber-containing composition (1993-03-16),

3. 5002905 - Hexagonal silicon carbide platelets and preforms and methods for making (1991-03-26),

4. 4990765 - Method and means for processing an analog signal from a diode array (1991-02-05),

5. 4981665 - Hexagonal silicon carbide platelets and preforms and methods for making (1991-01-01),

6. 4964993 - Multiple-use molten metal filters (1990-10-23),

7. 4925609 - Oxygen-sensing element (1990-05-15),

8. 4910412 - Light biased photoresponsive array (1990-03-20),

9. 4898367 - Dispersing gas into molten metal (1990-02-06),

10. 4885890 - Modular furnace lining and hardware system therefor (1989-12-12),

11. 4871108 - Silicon carbide-to-metal joint and method of making same (1989-10-03),

12. 4868142 - Method of manufacturing a molten metal-resistant ceramic fiber (1989-09-19),

13. 4863700 - Monolithic catalytic converter mounting arrangement (1989-09-05),

14. 4850171 - Modular furnace lining and hardware system therefor (1989-07-25),

15. 4822679 - Spray-applied ceramic fiber insulation (1989-04-18),

Stemcor Corporation is a global steel trading company. They specialize in the sourcing, processing, and distribution of steel and raw materials. Stemcor has a wide network of offices and warehouses across the world, enabling them to cater to various industries such as construction, manufacturing, and energy. With their extensive expertise and strong relationships with steel producers, Stemcor delivers quality products and provides reliable services to their customers.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

32 Patents

#60 in Cleveland, OH

#433 in Ohio

#10,223 in US

#20,037 in the World

Cleveland, OH, United States of America

Stemcor Corporation

Forward Citations = 725

40 inventors:

Wolfgang D Boecker (8 out of 16 patents)

Tadeusz M Korzekwa (5 out of 7 patents)

Miroslav Ondris (4 out of 9 patents)

4. Sai-Kwing Lau (4 out of 17 patents)

5. Stephen Chwastiak (4 out of 11 patents)

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