Inventor
PUTTMANN FRANZ-JOSEF
DE12 patents
Patents
12 patentsUS5937954AAug 17, 1999
Method for directional drilling
TRACTO TECHNIK56 citations95
US7111695B2Sep 26, 2006
Pneumatic rock-boring device and method for horizontal drilling using compressed air and drilling medium
TRACTO TECHNIK16 citations91
US7093671B2Aug 22, 2006
Pneumatic rock-boring device and method for starting such a device
TRACTO TECHNIK19 citations91
US6364036B1Apr 2, 2002
Automatic rod assembly
TRACTO TECHNIK11 citations72
US5960892AOct 5, 1999
Automatically driven pile driver drilling device
TRACTO TECHNIK13 citations72
US5924500AJul 20, 1999
Steerable boring machine
TRACTO TECHNIK11 citations72
US5642786AJul 1, 1997
Securing and tensioning device for a towing cable connected to a percussion boring machine
TRACTO TECHNIK3 citations62
US11280134B2Mar 22, 2022
Ground drilling device, method for making a ground drilling device, method for maintaining a ground drilling device, and use of a ground drilling device
TRACTO TECHNIK1 citations61
US11268324B2Mar 8, 2022
Ground drilling device, method for the production and use thereof
TRACTO TECHNIK0 citations61
US7052049B2May 30, 2006
Rod linkage
TRACTO TECHNIK4 citations61
US6510905B1Jan 28, 2003
Earth boring apparatus
TRACTO TECHNIK1 citations51
US7048074B2May 23, 2006
Control system for a percussion drive
TRACTO TECHNIK0 citations40