Inventor · disambiguated record
Robert K. Kopras
Also filed as: KOPRAS ROBERT · KOPRAS ROBERT K
17 granted patents·1 pending application·1,197 citations·filing 1991–2006
96Inventor score
Top patents by PatentIndex Score
18 records- 0197US6443675B1Hand-held power toolROTO ZIP TOOL CORP·Filed 2000·Granted Sep 3, 2002·229 cites·49 claims
- 0297US5902080ASpiral cutting tool with detachable battery packROTO ZIP TOOL CORP·Filed 1997·Granted May 11, 1999·234 cites·19 claims
- 0396US7094011B2Power toolCREDO TECH CORP·Filed 2005·Granted Aug 22, 2006·51 cites·26 claims
- 0496US5813805ASpiral cutting tool with detachable handleFiled 1996·Granted Sep 29, 1998·142 cites·23 claims
- 0594US6890135B2Power tool with light emitting diodeCREDO TECH CORP·Filed 2004·Granted May 10, 2005·88 cites·30 claims
- 0693US6443676B1Automatic locking depth guide for cutting tools and the likeROTO ZIP TOOL CORP·Filed 2000·Granted Sep 3, 2002·87 cites·27 claims
- 0792US6048260AAngle attachment for power toolROTO ZIP TOOL CORP·Filed 1999·Granted Apr 11, 2000·91 cites·25 claims
- 0889US6926477B2Jig assemblyCREDO TECH CORP·Filed 2003·Granted Aug 9, 2005·45 cites·28 claims
- 0988US6854938B2Automatic locking depth guide for cutting tools and the likeCREDO TECH CORP·Filed 2001·Granted Feb 15, 2005·35 cites·78 claims
- 1087US7131180B2Attachment for power toolCREDO TECH CORP·Filed 2004·Granted Nov 7, 2006·37 cites·25 claims
- 1187US5323823AWood router bitROTO ZIP TOOL CORP·Filed 1992·Granted Jun 28, 1994·57 cites·9 claims
- 1287US5143490ABit for cutting sheetrockROTO ZIP TOOL CORP·Filed 1991·Granted Sep 1, 1992·55 cites·11 claims
- 1376US7854054B2Attachment for power toolBOSCH TOOL CORP·Filed 2006·Granted Dec 21, 2010·15 cites·23 claims
- 1454USRE40304EAngle attachment for power toolBOSCH GMBH ROBERT·Filed 2002·Granted May 6, 2008·5 cites·36 claims
- 1554USD473770SPower tool with automatic locking depth guideROTO ZIP TOOL CORP·Filed 2001·Granted Apr 29, 2003·9 cites·1 claims
- 1654USD465712SPower tool with automatic locking depth guideROTO ZIP TOOL CORP·Filed 2001·Granted Nov 19, 2002·9 cites·1 claims
- 1752USD465393SAutomatic locking depth guideROTO ZIP TOOL CORP·Filed 2001·Granted Nov 12, 2002·8 cites·1 claims
- 1840US2002197123A1Power tool with light emitting diodeROTO ZIP TOOL CORP·Filed 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →