Inventor · disambiguated record
Rolf Spangenberg
Also filed as: SPANGENBERG ROLF
15 granted patents·366 citations·filing 1990–2005
94Inventor score
Top patents by PatentIndex Score
15 records- 0194US6814657B2Grinding wheel with grinding membersHILTI AG·Filed 2002·Granted Nov 9, 2004·56 cites·7 claims
- 0289US6471574B1Dust protection cover for a rotary grinding toolHILTI AG·Filed 2000·Granted Oct 29, 2002·43 cites·6 claims
- 0388US6375557B1Hand-held abrasive cutter with a suction hoodHILTI AG·Filed 2000·Granted Apr 23, 2002·34 cites·8 claims
- 0486US7223163B2Cover device for a power toolHILTI AG·Filed 2005·Granted May 29, 2007·14 cites·9 claims
- 0586US5911620APot-shaped grinding wheelHILTI AG·Filed 1998·Granted Jun 15, 1999·90 cites·6 claims
- 0675US6568383B2Disc-shaped cutting toolHILTI AG·Filed 2001·Granted May 27, 2003·18 cites·6 claims
- 0774US7392568B2Hand-held power tool with an auxiliary handleHILT AG·Filed 2005·Granted Jul 1, 2008·19 cites·11 claims
- 0866US7159952B2Automatic balancing deviceHILTI AG·Filed 2005·Granted Jan 9, 2007·5 cites·7 claims
- 0958US6926583B2Grinding wheelHILTI AG·Filed 2002·Granted Aug 9, 2005·8 cites·8 claims
- 1056US5082070AHollow drill bitHILTI AG·Filed 1990·Granted Jan 21, 1992·35 cites·6 claims
- 1152US6279565B1Articulated lock for a saw ropeHILTI AG·Filed 2001·Granted Aug 28, 2001·1 cites·8 claims
- 1252US5143489AMethod of drilling boresHILTI AG·Filed 1991·Granted Sep 1, 1992·16 cites·6 claims
- 1350US6382202B2Drill bitHILTI AG·Filed 2001·Granted May 7, 2002·4 cites·10 claims
- 1446US5655613ADrill bitHILTI AG·Filed 1995·Granted Aug 12, 1997·15 cites·6 claims
- 1533US6022176ATool bit with marking memberHILTI AG·Filed 1997·Granted Feb 8, 2000·8 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →