RK

Ronald Kefferstein

AR Arcelormittal: 9 patents #17 of 463Top 4%
AF Arcelormittal France: 5 patents #10 of 111Top 10%
SO Sollac: 2 patents #27 of 297Top 10%
UN Unisor: 1 patents #1 of 17Top 6%
US Usinor: 1 patents #68 of 185Top 40%
Overall (All Time): #249,085 of 4,157,543Top 6%
18
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
12012640 Method of forming a hot stamped coated steel product Pascal Drillet, Dominique Spehner 2024-06-18
11939643 Coated steel strips, coated stamped products and methods Pascal Drillet, Dominique Spehner 2024-03-26
11326227 Coated steel strips, coated stamped products and methods Pascal Drillet, Dominique Spehner 2022-05-10
11041226 Coated steel strips, coated stamped products and methods Pascal Drillet, Dominique Spehner 2021-06-22
10961602 Coated steel strips, coated stamped products and methods Pascal Drillet, Dominique Spehner 2021-03-30
10597747 Coated steel strips, coated stamped products and methods Pascal Drillet, Dominique Spehner 2020-03-24
10590507 Coated steel strips, coated stamped products and methods Pascal Drillet, Dominique Spehner 2020-03-17
10577674 Coated steel strips, coated stamped products and methods Pascal Drillet, Dominique Spehner 2020-03-03
10550447 Coated steel strips, coated stamped products and methods Pascal Drillet, Dominique Spehner 2020-02-04
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 Pascal Drillet, Dominique Spehner 2017-07-18
8733142 Process for manufacturing stamped products, and stamped products prepared from the same Dominique Spehner, Pascal Drillet 2014-05-27
8440323 Coated steel stamped product Dominique Spehner, Pascal Drillet 2013-05-14
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 Pascal Drillet, Dominique Spehner 2012-11-13
8066829 Process for manufacturing stamped products, and stamped products prepared from the same Dominique Spehner, Pascal Drillet 2011-11-29
6564604 Process for the manufacture of a part with very high mechanical properties, formed by stamping of a strip of rolled steel sheet and more particularly hot rolled and coated Xavier Jartoux 2003-05-20
6447590 Treatment composition based on pregelatinized starch and process for applying it to a metal, especially steel, surface Lothaire Scherer 2002-09-10
6309697 Composition for temporarily protecting metal components from corrosion, its processes of preparation and of application, and metal components obtained from this composition Lothaire Scherer, Philippe Antoine 2001-10-30
6063447 Process for treating the surface of metal parts Claude Morand 2000-05-16