Inventor · disambiguated record
Paul Campbell
Also filed as: CAMPBELL JR PAUL B · CAMPBELL PAUL · CAMPBELL PAUL B
21 granted patents·3 pending applications·366 citations·filing 1989–2022
95Inventor score
Top patents by PatentIndex Score
24 records- 0188US5662180APercussion drill assemblyDRESSER RAND CO·Filed 1995·Granted Sep 2, 1997·153 cites·65 claims
- 0282US10801197B2Wall assembly having a spacerBASF SE·Filed 2016·Granted Oct 13, 2020·7 cites·18 claims
- 0370US9987764B2Tube insertion toolCAMPBELL PAUL·Filed 2015·Granted Jun 5, 2018·1 cites·23 claims
- 0470US6047778APercussion drill assemblyDRESSER RAND CO·Filed 1999·Granted Apr 11, 2000·64 cites·5 claims
- 0565US8561730B2Foot valve assembly for a down hole drillYAO JING JAMES·Filed 2010·Granted Oct 22, 2013·3 cites·29 claims
- 0664USD741159SScrewKAMAX HOLDING GMBH & CO KG·Filed 2014·Granted Oct 20, 2015·12 cites·1 claims
- 0757US5957220APercussion drill assemblyDRESSER RAND CO·Filed 1996·Granted Sep 28, 1999·40 cites·4 claims
- 0855US8215419B2Variable frequency control for down hole drill and methodPLUNKETT TIMOTHY J·Filed 2009·Granted Jul 10, 2012·5 cites·19 claims
- 0954US5350025ANonrotary piston for jackhammer and removable splined nut thereforINGERSOLL RAND CO·Filed 1993·Granted Sep 27, 1994·26 cites·4 claims
- 1049US5022309AVariable frequency control for percussion actuatorINGERSOLL RAND CO·Filed 1990·Granted Jun 11, 1991·13 cites·6 claims
- 1146USD722866SBall pinKAMAX HOLDING GMBH & CO KG·Filed 2014·Granted Feb 24, 2015·5 cites·1 claims
- 1244US11541625B2Wall assemblyBASF SE·Filed 2016·Granted Jan 3, 2023·0 cites·16 claims
- 1344US5031505AVariable frequency control for percussion actuatorINGERSOLL RAND CO·Filed 1989·Granted Jul 16, 1991·9 cites·11 claims
- 1443US2025082477A1Surgical implantINVIBIO KNEES LTD·Filed 2022·Application pending·0 cites
- 1539US7073607B2Operating system for hydraulic rock drillCAMPBELL JR PAUL B·Filed 2002·Granted Jul 11, 2006·2 cites·1 claims
- 1638US2003006052A1Valve for hydraulic rock drillFiled 2002·Application pending·0 cites
- 1736US5413186AReverse percussion deviceREEDRILL INC·Filed 1994·Granted May 9, 1995·9 cites·7 claims
- 1836US5305835ANonrotary piston for jackhammer and removable splined nut thereforINGERSOLL RAND CO·Filed 1992·Granted Apr 26, 1994·9 cites·9 claims
- 1935US2017370482A1Sub-plate mounted valveAXON ENERGY PRODUCTS UK LTD·Filed 2015·Application pending·0 cites
- 2033US7040417B2Drilling systemsCCT TECHNOLOGIES L L C·Filed 2003·Granted May 9, 2006·2 cites·24 claims
- 2132US7044479B2Steel retainer for rock drillCAMPBELL JR PAUL B·Filed 2002·Granted May 16, 2006·0 cites·2 claims
- 2232US5634524AReverse percussion deviceREEDRILL CORP·Filed 1995·Granted Jun 3, 1997·6 cites·1 claims
- 2330USD355355SExternal surface of a splined nutINGERSOLL RAND CO·Filed 1992·Granted Feb 14, 1995·0 cites·1 claims
- 2430USD355356SAn external surface of a splined nutINGERSOLL RAND CO·Filed 1994·Granted Feb 14, 1995·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →