Inventor

GROBBEL RAIMUND

DE3 patents

⚠️ This page may combine multiple inventors who share the name “GROBBEL RAIMUND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

HERMES STEFAN

1 patent

US8562269B2Oct 22, 2013

Drilling apparatus

HERMES STEFAN5 citations64

TRACTO TECHNIK

1 patent

US10053931B2Aug 21, 2018

Drive of an earth drilling device, earth drilling device, and a method for driving an earth drilling device

TRACTO TECHNIK0 citations48

FISCHER SEBASTIAN

1 patent

US9290992B2Mar 22, 2016

Plug connection and pipe section for a drill pipe

FISCHER SEBASTIAN0 citations33