For the Inventor, By the Inventor

Enter assignee name

Cleveland, OH, United States of America

Stemcor Corporation

USPTO Granted Patents = 32

Trademarks = 3

Forward Citations = 729

Loading Chart...

Loading Chart...

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 131 patents)

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

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

Core Competencies:

Silicon Carbide

Hexagonal Platelets

Molten Metal Filters

Oxygen-Sensing Element

Photovoltaic Device

Ceramic Fiber

Modular Furnace

Double Layer Capacitors

Photosensors

Catalytic Converter

Composite Materials

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),

Company Overview

Stemcor Corporation, based in Cleveland, Ohio, specializes in the development and manufacturing of advanced materials and components for various industrial applications. The company focuses on innovative solutions that enhance performance and efficiency across sectors such as automotive, aerospace, and energy. With a commitment to research and technology, Stemcor aims to deliver high-quality products that meet the evolving needs of its clients while contributing to sustainable practices in manufacturing.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

32 Patents

#66 in Cleveland, OH

#466 in Ohio

#10,607 in US

#20,697 in the World

Cleveland, OH, United States of America

Stemcor Corporation

Forward Citations = 729

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)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Stemcor Corporation. Retrieved from https://idiyas.com/company/stemcor

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

Loading…