Dominique Spehner — 19 Patents at Arcelormittal

Dominique Spehner has been granted 19 US patents while listed as an inventor at Arcelormittal. The first was granted in 1998 and the most recent in October 2025. Dominique Spehner ranks #229,345 of 4,157,543 US inventors in our database (top 5.5%). Patent records list Dominique Spehner in Charleville-Mézières, FR.

Issued Patents All Time

Showing 1–19 of 19 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
12454737	Method of forming a hot stamped coated steel product	Pascal Drillet, Ronald Kefferstein	2025-10-28
12012640	Method of forming a hot stamped coated steel product	Pascal Drillet, Ronald Kefferstein	2024-06-18	$39,032,000
11939643	Coated steel strips, coated stamped products and methods	Pascal Drillet, Ronald Kefferstein	2024-03-26	$64,000,000
11326227	Coated steel strips, coated stamped products and methods	Pascal Drillet, Ronald Kefferstein	2022-05-10	$238,712,000
11041226	Coated steel strips, coated stamped products and methods	Pascal Drillet, Ronald Kefferstein	2021-06-22	$302,728,000
10961602	Coated steel strips, coated stamped products and methods	Pascal Drillet, Ronald Kefferstein	2021-03-30	$352,622,000
10597747	Coated steel strips, coated stamped products and methods	Pascal Drillet, Ronald Kefferstein	2020-03-24	$44,463,000
10590507	Coated steel strips, coated stamped products and methods	Pascal Drillet, Ronald Kefferstein	2020-03-17	$35,460,000
10577674	Coated steel strips, coated stamped products and methods	Pascal Drillet, Ronald Kefferstein	2020-03-03	$127,086,000
10550447	Coated steel strips, coated stamped products and methods	Pascal Drillet, Ronald Kefferstein	2020-02-04	$84,153,000
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, Ronald Kefferstein	2017-07-18
RE44940	Coated hot- and cold-rolled steel sheet comprising a very high resistance after thermal treatment	Jean-Pierre Laurent, Jean-Paul Hennechart, Jacques Devroc	2014-06-10
8733142	Process for manufacturing stamped products, and stamped products prepared from the same	Ronald Kefferstein, Pascal Drillet	2014-05-27
8440323	Coated steel stamped product	Ronald Kefferstein, Pascal Drillet	2013-05-14
RE44153	Coated hot- and cold-rolled steel sheet comprising a very high resistance after thermal treatment	Jean-Pierre Laurent, Jean-Paul Hennechart, Jacques Devroc	2013-04-16
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, Ronald Kefferstein	2012-11-13
8066829	Process for manufacturing stamped products, and stamped products prepared from the same	Ronald Kefferstein, Pascal Drillet	2011-11-29
6296805	Coated hot- and cold-rolled steel sheet comprising a very high resistance after thermal treatment	Jean-Pierre Laurent, Jean-Paul Hennechart, Jacques Devroc	2001-10-02
5739485	Motor vehicle exhaust muffler	Vincent Cholet, Gilbert Duboueix, Philippe Guesdon	1998-04-14

Dominique Spehner — 19 Patents

Issued Patents All Time

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