David Kierbel has been granted 4 US patents while listed as an inventor at Valeo . The first was granted in 2000 and the most recent in June 2003. David Kierbel ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list David Kierbel in Caen, FR.
Patents per Year Patents granted per year, 2000 to 2003 Bar chart with a peak of 2 patents in 2000. peak 2 2000: 2 patents 2000 2002: 1 patents 2002 2003: 1 patents 2003
Issued Patents All Time
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Showing 1–4 of 4 patents
Patent # Title Co-Inventors Date
6571449 Friction liner for a dry friction device, a method of making such a liner, and a clutch friction wheel having such a liner Loïc Adamczak , Claude Legrand , Richard Guerin 2003-06-03
6454555 Apparatus for making an annular friction liner Loïc Adamczak , Cécile Rommeru , Claude Legrand 2002-09-24
6056100 Friction liner for a dry friction device, a method of making such a liner, and a clutch friction wheel having such a liner Loïc Adamczak , Claude Legrand , Richard Guerin 2000-05-02
6036903 Method of making an annular friction liner Loïc Adamczak , Cécile Rommeru , Claude Legrand 2000-03-14