Inventor · disambiguated record
Randall J. Duval
Also filed as: DUVAL RANDALL · DUVAL RANDALL J · DUVAL RANDALL JOSEPH
11 granted patents·3 pending applications·33 citations·filing 2003–2018
87Inventor score
Top patents by PatentIndex Score
14 records- 0191US8859937B2Engine driven welder-generator with chopper circuitILLINOIS TOOL WORKS·Filed 2013·Granted Oct 14, 2014·8 cites·20 claims
- 0289US9266183B2Welder generator engine speed controlILLINOIS TOOL WORKS·Filed 2013·Granted Feb 23, 2016·6 cites·20 claims
- 0386US8502115B2Engine driven welder-generator with chopper circuitDUVAL RANDALL JOSEPH·Filed 2010·Granted Aug 6, 2013·8 cites·20 claims
- 0479US10919103B2Inductor and system for welding for maintaining welding arcsILLINOIS TOOL WORKS·Filed 2017·Granted Feb 16, 2021·1 cites·20 claims
- 0578US9381593B2Engine driven welder-generator with chopper circuitILLINOIS TOOL WORKS·Filed 2014·Granted Jul 5, 2016·2 cites·20 claims
- 0672US11027356B2Welder generator engine speed controlILLINOIS TOOL WORKS·Filed 2018·Granted Jun 8, 2021·0 cites·21 claims
- 0772US7315231B2Electrical reactor assembly having center tapsILLINOIS TOOL WORKS·Filed 2005·Granted Jan 1, 2008·5 cites·15 claims
- 0866US10144082B2Welder generator engine speed controlILLINOIS TOOL WORKS·Filed 2017·Granted Dec 4, 2018·0 cites·19 claims
- 0963US9604302B2Welder generator engine speed controlILLINOIS TOOL WORKS·Filed 2016·Granted Mar 28, 2017·0 cites·20 claims
- 1057US9676053B2Inductor and system for welding for maintaining welding arcsILLINOIS TOOL WORKS·Filed 2013·Granted Jun 13, 2017·0 cites·14 claims
- 1151US6954131B2Electrical reactor assembly having center tapsILLINOIS TOOL WORKS·Filed 2003·Granted Oct 11, 2005·3 cites·23 claims
- 1249US2019077684A1System for Treating SewageDUVAL RANDALL·Filed 2018·Application pending·0 cites
- 1346US2014028141A1Rotor and generator for reducing harmonicsILLINOIS TOOL WORKS·Filed 2013·Application pending·0 cites
- 1444US2017305772A1System for Treating SewageDUVAL RANDALL·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →