Inventor · disambiguated record
Alan Smith
Also filed as: SMITH ALAN · SMITH ALAN F · Smith Alan Frederic
22 granted patents·2 pending applications·427 citations·filing 1995–2023
96Inventor score
Top patents by PatentIndex Score
24 records- 0196US7312419B2Engine driven converter with feedback controlILLINOIS TOOL WORKS·Filed 2006·Granted Dec 25, 2007·20 cites·17 claims
- 0294US7112945B2Engine driven converter with feedback controlILLINOIS TOOL WORKS·Filed 2005·Granted Sep 26, 2006·12 cites·24 claims
- 0394US5968385AEngine driven inverter welding power supplyILLINOIS TOOL WORKS·Filed 1997·Granted Oct 19, 1999·73 cites·33 claims
- 0493US6469401B2Engine driven welding power supply with inverter auxiliary powerILLINOIS TOOL WORKS·Filed 2001·Granted Oct 22, 2002·38 cites·19 claims
- 0592US6674179B2Engine driven inverter welding power supplyILLINOIS TOOL WORKS·Filed 2002·Granted Jan 6, 2004·32 cites·39 claims
- 0690US6310321B1Engine driven inverter welding power supplyILLINOIS TOOL WORKS·Filed 2000·Granted Oct 30, 2001·30 cites·16 claims
- 0787US10688583B2Welding power supplies having adjustable current ramping ratesILLINOIS TOOL WORKS·Filed 2017·Granted Jun 23, 2020·3 cites·21 claims
- 0887US6153855AControl of weld and auxiliary power output of a generator type welding power supplyILLINOIS TOOL WORKS·Filed 1999·Granted Nov 28, 2000·56 cites·28 claims
- 0985US6894401B2Engine driven inverter welding power supplyILLINOIS TOOL WORKS·Filed 2003·Granted May 17, 2005·19 cites·34 claims
- 1085US6111217AEngine driven inverter welding power supplyILLINOIS TOOL WORKS·Filed 1999·Granted Aug 29, 2000·32 cites·31 claims
- 1184US12231010B2Methods and apparatus to control engine speed of a power systemILLINOIS TOOL WORKS·Filed 2023·Granted Feb 18, 2025·0 cites·7 claims
- 1282US5734147AMethod and apparatus for electronically controlling the output of an engine driven generator welding power supplyILLINOIS TOOL WORKS·Filed 1995·Granted Mar 31, 1998·42 cites·32 claims
- 1381US6469276B1Control of weld and auxiliary power output of a generator type welding power supplyILLINOIS TOOL WORKS·Filed 2000·Granted Oct 22, 2002·26 cites·27 claims
- 1476US10384290B2Engine driven power supplies with output reductionILLINOIS TOOL WORKS·Filed 2016·Granted Aug 20, 2019·1 cites·19 claims
- 1575US6531685B2Separate exciter windings for weld and auxiliary powerILLINOIS TOOL WORKS·Filed 2001·Granted Mar 11, 2003·17 cites·41 claims
- 1670US11420284B2Engine driven power supplies with output reductionILLINOIS TOOL WORKS·Filed 2019·Granted Aug 23, 2022·0 cites·20 claims
- 1766US11848592B2Methods and apparatus to control engine speed of a power systemILLINOIS TOOL WORKS·Filed 2019·Granted Dec 19, 2023·0 cites·9 claims
- 1866US2020316705A1Welding power supplies having adjustable current ramping ratesILLINOIS TOOL WORKS·Filed 2020·Application pending·0 cites
- 1965US6005220AMethod and apparatus for electronically controlling the output of an engine driven generator welding power supplyILLINOIS TOOL WORKS·Filed 1998·Granted Dec 21, 1999·20 cites·18 claims
- 2063US9086049B2Power generating equipmentVIGARS PAUL·Filed 2011·Granted Jul 21, 2015·2 cites·11 claims
- 2152US11097370B2Methods and apparatus to control an output of a switched mode power supply in a service packILLINOIS TOOL WORKS·Filed 2019·Granted Aug 24, 2021·0 cites·9 claims
- 2252US11075581B2Methods and apparatus to use a switched-mode power supply as a source of power in a service packILLINOIS TOOL WORKS·Filed 2019·Granted Jul 27, 2021·0 cites·11 claims
- 2350US6963216B2Method and apparatus for detecting shorted rectifying control elements of an engine driven power source for welding-type systemILLINOIS TOOL WORKS·Filed 2003·Granted Nov 8, 2005·4 cites·19 claims
- 2440US2017028501A1Welding System Having Multiple Weld OutputsILLINOIS TOOL WORKS·Filed 2015·Application pending·0 cites
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