LV

Lionel Verdillon

SI Sumitomo Metal Industries: 2 patents #334 of 1,462Top 25%
VF Vallourec Mannesmann Oil & Gas France: 2 patents #24 of 81Top 30%
Overall (All Time): #2,190,456 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6752436 Fatigue-resistant threaded bevelled tubular element — 2004-06-22
6729658 Threaded tubular element for fatigue resistant threaded tubular joint and resulting threaded tubular joint — 2004-05-04