KL

Kees Langeveld

BT Baroid Technology: 1 patents #36 of 87Top 45%
Overall (All Time): #2,257,733 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5720355 Drill bit instrumentation and method for controlling drilling or core-drilling Etienne Lamine, Pierre Stassain, Michael S. Bittar, Paul F. Rodney 1998-02-24
5501285 Method for controlling the head of a drilling or core-drilling device and apparatus for carrying out this method Etienne Lamine 1996-03-26