Inventor · disambiguated record
David Halstead
Also filed as: HALSTEAD DAVID · HALSTEAD DAVID K
20 granted patents·1 pending application·297 citations·filing 1985–2023
95Inventor score
Top patents by PatentIndex Score
21 records- 0195US6349712B1Saw extensionFiled 2001·Granted Feb 26, 2002·67 cites·6 claims
- 0291US7555995B1Information tracking device and methodSTUMP KENNETH T·Filed 2007·Granted Jul 7, 2009·30 cites·6 claims
- 0378USD584118SScrewdriver for strong-drive screws with quick disconnectHALSTEAD DAVID·Filed 2007·Granted Jan 6, 2009·24 cites·1 claims
- 0478USD465714SHammerFiled 2001·Granted Nov 19, 2002·24 cites·1 claims
- 0572US6347907B1Dolly and method of useFiled 2000·Granted Feb 19, 2002·22 cites·13 claims
- 0671US7032535B2Tracking device and methodHALSTEAD DAVID·Filed 2003·Granted Apr 25, 2006·29 cites·13 claims
- 0771US6792829B2Shingle lifting toolFiled 2001·Granted Sep 21, 2004·22 cites·1 claims
- 0863USD472777SCombination gas valve wrench and water valve wrenchFiled 2001·Granted Apr 8, 2003·13 cites·1 claims
- 0959USD715612SImpact socketHALSTEAD DAVID·Filed 2012·Granted Oct 21, 2014·10 cites·1 claims
- 1058USD1034121SWrenchHALSTEAD DAVID·Filed 2023·Granted Jul 9, 2024·1 cites·1 claims
- 1155USD472778SImpact socketFiled 2001·Granted Apr 8, 2003·9 cites·1 claims
- 1253USD463649SHand cartFiled 2001·Granted Sep 24, 2002·8 cites·1 claims
- 1351USD838569SStake driver toolHALSTEAD DAVID·Filed 2017·Granted Jan 22, 2019·5 cites·1 claims
- 1450USD438437SGas valve wrenchFiled 2000·Granted Mar 6, 2001·7 cites·1 claims
- 1547USD495569SDeep socket wrenchFiled 2003·Granted Sep 7, 2004·6 cites·1 claims
- 1646USD451104SAttachment wheel for a concrete finishing machineFiled 2000·Granted Nov 27, 2001·6 cites·1 claims
- 1742US4611113AHeat stress calculatorHALSTEAD DAVID K·Filed 1985·Granted Sep 9, 1986·10 cites·8 claims
- 1842US2002096166A1Saw extensionFiled 2002·Application pending·0 cites
- 1935USD512613SCombination wrench for saw and chuck key for drillHALSTEAD DAVID·Filed 2004·Granted Dec 13, 2005·2 cites·1 claims
- 2034USD550053SAir directing device for a power sawHALSTEAD DAVID·Filed 2005·Granted Sep 4, 2007·2 cites·1 claims
- 2129USD571178SAir directing device for a power sawHALSTEAD DAVID·Filed 2007·Granted Jun 17, 2008·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →