Inventor
LUDWIG MANFRED
DE22 patents
⚠️ This page may combine multiple inventors who share the name “LUDWIG MANFRED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HILTI AG
10 patentsUS6543549B1Apr 8, 2003
Electrically driven hand-held tool
HILTI AG199 citations98
US6240816B1Jun 5, 2001
Depth stop for a hand-held screw driving tool
HILTI AG20 citations91
US7861797B2Jan 4, 2011
Hand-held machine tool with slip clutch
HILTI AG9 citations84
US6547013B2Apr 15, 2003
Screw driving tool
HILTI AG14 citations84
US10328565B2Jun 25, 2019
Portable power tool
HILTI AG2 citations72
US9656378B2May 23, 2017
Machine tool
HILTI AG5 citations72
US6978698B2Dec 27, 2005
Fastener guide
HILTI AG8 citations71
US7137324B2Nov 21, 2006
Hand-held power screwdriver with a low-noise torque clutch
HILTI AG4 citations62
US9597788B2Mar 21, 2017
Handheld power tool
HILTI AG1 citations50
US11945085B2Apr 2, 2024
Hand-held power tool
HILTI AG0 citations48
FEIN C & E
5 patentsUS4779687AOct 25, 1988
Electric tool with source of power independent of the line
FEIN C & E114 citations95
US4655103AApr 7, 1987
Clutch for power screwdrivers
FEIN C & E96 citations95
US6176162B1Jan 23, 2001
Power-driven screwdriver with removable depth stop
FEIN C & E37 citations92
US5207528AMay 4, 1993
Retaining device for an angled drive
FEIN C & E15 citations73
US4923047AMay 8, 1990
Machine with variable torque setting
FEIN C & E19 citations72