Inventor
LUBBERGER MICHAEL
DE5 patents
Patents
5 patentsUS10364611B2Jul 30, 2019
Drill head for expanding a pilot bore in order to create a borehole
HERRENKNECHT AG7 citations77
US11118454B2Sep 14, 2021
Tunnel boring device and system for the hydraulic removal of cuttings, and system for producing a stable fluid pressure for a boring fluid in the region of a cutting disk of the tunnel boring device
HERRENKNECHT AG0 citations45
US10941624B2Mar 9, 2021
Drill string element
HERRENKNECHT AG0 citations45
US10081992B2Sep 25, 2018
Device for conveying away drillings
HERRENKNECHT AG0 citations35
US10443761B2Oct 15, 2019
Method and device for trenchless pipe laying
HERRENKNECHT AG0 citations27