Inventor
SPANGENBERG ROLF
DE15 patents
⚠️ This page may combine multiple inventors who share the name “SPANGENBERG ROLF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HILTI AG
14 patentsUS6814657B2Nov 9, 2004
Grinding wheel with grinding members
HILTI AG56 citations95
US5911620AJun 15, 1999
Pot-shaped grinding wheel
HILTI AG90 citations94
US6375557B1Apr 23, 2002
Hand-held abrasive cutter with a suction hood
HILTI AG34 citations91
US6471574B1Oct 29, 2002
Dust protection cover for a rotary grinding tool
HILTI AG43 citations90
US5082070AJan 21, 1992
Hollow drill bit
HILTI AG35 citations88
US6568383B2May 27, 2003
Disc-shaped cutting tool
HILTI AG18 citations83
US7223163B2May 29, 2007
Cover device for a power tool
HILTI AG14 citations82
US6022176AFeb 8, 2000
Tool bit with marking member
HILTI AG8 citations73
US5143489ASep 1, 1992
Method of drilling bores
HILTI AG16 citations71
US6926583B2Aug 9, 2005
Grinding wheel
HILTI AG8 citations68
US5655613AAug 12, 1997
Drill bit
HILTI AG15 citations68
US7159952B2Jan 9, 2007
Automatic balancing device
HILTI AG5 citations61
US6382202B2May 7, 2002
Drill bit
HILTI AG4 citations58
US6279565B1Aug 28, 2001
Articulated lock for a saw rope
HILTI AG1 citations50