Inventor

KAMPHORST HERMAN

NL3 patents

Patents

3 patents

US7096977B2Aug 29, 2006

Pipe running tool

VARCO INT66 citations95

US6938709B2Sep 6, 2005

Pipe running tool

VARCO INT48 citations94

US6527493B1Mar 4, 2003

Handling of tube sections in a rig for subsoil drilling

VARCO INT132 citations92