Inventor
VAN HOUWELINGEN MARK
US6 patents
⚠️ This page may combine multiple inventors who share the name “VAN HOUWELINGEN MARK”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
VERMEER MFG CO
5 patentsUS6454025B1Sep 24, 2002
Apparatus for directional boring under mixed conditions
VERMEER MFG CO128 citations96
US6659202B2Dec 9, 2003
Steerable fluid hammer
VERMEER MFG CO52 citations90
US6588516B2Jul 8, 2003
Method and apparatus for directional boring under mixed conditions
VERMEER MFG CO16 citations90
US6491115B2Dec 10, 2002
Directional drilling machine and method of directional drilling
VERMEER MFG CO33 citations90
US6357537B1Mar 19, 2002
Directional drilling machine and method of directional drilling
VERMEER MFG CO39 citations90