Growing community of inventors

Saint Mitre les Ramparts, France

Ronald Kefferstein

Average Co-Inventor Count = 3.00

ph-index = 5

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 83

Ronald KeffersteinPascal Drillet (15 patents)Ronald KeffersteinDominique Spehner (15 patents)Ronald KeffersteinXavier Jartoux (1 patent)Ronald KeffersteinRonald Kefferstein (15 patents)Pascal DrilletPascal Drillet (30 patents)Dominique SpehnerDominique Spehner (19 patents)Xavier JartouxXavier Jartoux (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Arcelormittal (10 from 401 patents)

2. Arcelormittal France (5 from 53 patents)

3. Usinor (74 patents)


15 patents:

1. 12454737 - Method of forming a hot stamped coated steel product

2. 12012640 - Method of forming a hot stamped coated steel product

3. 11939643 - Coated steel strips, coated stamped products and methods

4. 11326227 - Coated steel strips, coated stamped products and methods

5. 11041226 - Coated steel strips, coated stamped products and methods

6. 10961602 - Coated steel strips, coated stamped products and methods

7. 10597747 - Coated steel strips, coated stamped products and methods

8. 10590507 - Coated steel strips, coated stamped products and methods

9. 10577674 - Coated steel strips, coated stamped products and methods

10. 10550447 - Coated steel strips, coated stamped products and methods

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

12. 8733142 - Process for manufacturing stamped products, and stamped products prepared from the same

13. 8440323 - Coated steel stamped product

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

15. 8066829 - Process for manufacturing stamped products, and stamped products prepared from the same

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as of
1/13/2026
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