Company Filing History:

10 out of 399

Arcelormittal

Years Active: 2011-2025

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15 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 12454737 - Method of forming a hot stamped coated steel product (2025-10-28),

2. 12012640 - Method of forming a hot stamped coated steel product (2024-06-18),

3. 11939643 - Coated steel strips, coated stamped products and methods (2024-03-26),

4. 11326227 - Coated steel strips, coated stamped products and methods (2022-05-10),

5. 11041226 - Coated steel strips, coated stamped products and methods (2021-06-22),

6. 10961602 - Coated steel strips, coated stamped products and methods (2021-03-30),

7. 10597747 - Coated steel strips, coated stamped products and methods (2020-03-24),

8. 10590507 - Coated steel strips, coated stamped products and methods (2020-03-17),

9. 10577674 - Coated steel strips, coated stamped products and methods (2020-03-03),

10. 10550447 - Coated steel strips, coated stamped products and methods (2020-02-04),

11. 9708683 - Coated steel strips, methods of making the same, methods of using the same, stamping blanks prepared from the same, stamped products prepared from the same, and articles of manufacture which contain such a stamped product (2017-07-18),

12. 8733142 - Process for manufacturing stamped products, and stamped products prepared from the same (2014-05-27),

13. 8440323 - Coated steel stamped product (2013-05-14),

14. 8307680 - Coated steel strips, methods of making the same, methods of using the same, stamping blanks prepared from the same, stamped products prepared from the same, and articles of manufacture which contain such a stamped product (2012-11-13),

15. 8066829 - Process for manufacturing stamped products, and stamped products prepared from the same (2011-11-29),

Title: The Innovative Journey of Ronald Kefferstein

Introduction

Ronald Kefferstein is a prominent inventor based in Saint Mitre les Ramparts, France. He has made significant contributions to the field of materials engineering, particularly in the development of coated steel products. With a total of 14 patents to his name, Kefferstein's work has had a substantial impact on the industry.

Latest Patents

One of his latest patents is titled "Method of forming a hot stamped coated steel product." This innovative method involves providing a precoated steel strip that includes a base steel with a precoating made of aluminum or an aluminum alloy. The process includes heating the precoated steel strip in a furnace, followed by hot stamping to create a hot stamped coated steel product with multiple layers, including an interdiffusion layer and a superficial layer. Another notable patent is for "Coated steel strips, coated stamped products and methods," which describes a pre-coated steel strip with specific dimensions and a pre-coating thickness ranging from 20 to 33 micrometers.

Career Highlights

Throughout his career, Ronald Kefferstein has worked with notable companies such as ArcelorMittal and ArcelorMittal France. His experience in these organizations has allowed him to refine his expertise in steel processing and product development.

Collaborations

Kefferstein has collaborated with several professionals in his field, including Pascal Drillet and Dominique Spehner. These partnerships have contributed to the advancement of his innovative projects and patents.

Conclusion

Ronald Kefferstein's contributions to the field of coated steel products and his impressive portfolio of patents highlight his role as a leading inventor in materials engineering. His work continues to influence the industry and pave the way for future innovations.

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2 patents (CIPO):

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8 patents (EPO):

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5 patents pending (EPO):

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