Inventor · disambiguated record
Douglas C. Folts
Also filed as: FOLTS DOUGLAS C
25 granted patents·7 pending applications·922 citations·filing 1991–2018
97Inventor score
Files withAMERICAN SUPERCONDUCTOR CORP17FOLTS DOUGLAS C10BEST POWER TECH INC2AMERICAN SUPERCONDUCTOR CORP A1AMERICAN SUPERCONDUTOR CORP1
Top patents by PatentIndex Score
32 records- 0194US5315533ABack-up uninterruptible power systemBEST POWER TECH INC·Filed 1991·Granted May 24, 1994·272 cites·48 claims
- 0293US6987331B2Voltage recovery device for use with a utility power networkAMERICAN SUPERCONDUCTOR CORP·Filed 2001·Granted Jan 17, 2006·83 cites·20 claims
- 0391US6577108B2Voltage regulation of a utility power networkAMERICAN SUPERCONDUCTOR CORP·Filed 2002·Granted Jun 10, 2003·41 cites·16 claims
- 0491US6266260B1Inverter having center switch and uninterruptible power supply implementing samePOWERWARE CORP·Filed 2000·Granted Jul 24, 2001·81 cites·35 claims
- 0588US7265521B2Reactive power compensation to minimize step voltage changes and transientsAMERICAN SUPERCONDUCTOR CORP·Filed 2005·Granted Sep 4, 2007·13 cites·45 claims
- 0687US5302858AMethod and apparatus for providing battery charging in a backup power systemBEST POWER TECH INC·Filed 1991·Granted Apr 12, 1994·128 cites·22 claims
- 0786US7567160B2Supplementary transformer cooling in a reactive power compensation systemAMERICAN SUPERCONDUCTOR CORP·Filed 2006·Granted Jul 28, 2009·19 cites·21 claims
- 0885US8120932B2Low voltage ride throughFOLTS DOUGLAS C·Filed 2008·Granted Feb 21, 2012·26 cites·26 claims
- 0985US7989983B2Power conversion systemsAMERICAN SUPERCONDUCTOR CORP·Filed 2009·Granted Aug 2, 2011·19 cites·20 claims
- 1085US7091703B2Dynamic reactive compensation system and methodAMERICAN SUPERCONDUCTOR CORP·Filed 2004·Granted Aug 15, 2006·81 cites·38 claims
- 1184US8886267B2Fault current limiting HTS cable and method of configuring sameFOLTS DOUGLAS C·Filed 2010·Granted Nov 11, 2014·4 cites·9 claims
- 1284US7724482B2Parallel HTS transformer deviceAMERICAN SUPERCONDUCTOR CORP·Filed 2007·Granted May 25, 2010·13 cites·20 claims
- 1383US8189324B2Power electronic assembly with slotted heatsinkFOLTS DOUGLAS C·Filed 2009·Granted May 29, 2012·11 cites·13 claims
- 1482US7902461B2Fault current limiting HTS cable and method of configuring sameAMERICAN SUPERCONDUCTOR CORP·Filed 2007·Granted Mar 8, 2011·8 cites·16 claims
- 1579US10193340B2Multi-level cascaded H-bridge STATCOM circulating cooling fluid within enclosureAMERICAN SUPERCONDUCTOR CORP·Filed 2017·Granted Jan 29, 2019·4 cites·23 claims
- 1678US7674751B2Fabrication of sealed high temperature superconductor wiresAMERICAN SUPERCONDUCTOR CORP·Filed 2006·Granted Mar 9, 2010·12 cites·21 claims
- 1775USRE41170EVoltage regulation of a utility power networkAMERICAN SUPERCONDUCTOR CORP·Filed 2007·Granted Mar 30, 2010·10 cites·75 claims
- 1872US8532725B2Parallel connected HTS utility device and method of using sameFOLTS DOUGLAS C·Filed 2010·Granted Sep 10, 2013·2 cites·14 claims
- 1964US10669001B2Hybrid electrical and mechanical propulsion and energy system for a shipAMERICAN SUPERCONDUCTOR CORP·Filed 2018·Granted Jun 2, 2020·2 cites·23 claims
- 2063US6906434B1Electric utility system with superconducting magnetic energy storageAMERICAN SUPERCONDUCTOR CORP·Filed 1999·Granted Jun 14, 2005·43 cites·29 claims
- 2162US9172312B2Reducing photovoltaic array voltage during inverter re-enablementFOLTS DOUGLAS C·Filed 2009·Granted Oct 27, 2015·2 cites·18 claims
- 2261US6900619B2Reactive power compensation to minimize step voltage changes and transientsAMERICAN SUPERCONDUCTOR CORP·Filed 1999·Granted May 31, 2005·23 cites·21 claims
- 2347US2012033468A1Power conversion systemsFOLTS DOUGLAS C·Filed 2011·Application pending·0 cites
- 2446US2008191561A1Parallel connected hts utility device and method of using sameFOLTS DOUGLAS C·Filed 2007·Application pending·0 cites
- 2544US2008194411A1HTS WireFOLTS DOUGLAS C·Filed 2007·Application pending·0 cites
- 2641US2008190646A1Parallel connected hts fcl deviceFOLTS DOUGLAS C·Filed 2007·Application pending·0 cites
- 2740US2002075701A1Voltage regulation of a utility power networkAMERICAN SUPERCONDUCTOR CORP·Filed 2001·Application pending·0 cites
- 2839US6445555B1Method and apparatus for discharging a superconducting magnetAMERICAN SUPERCONDUCTOR CORP·Filed 1999·Granted Sep 3, 2002·11 cites·19 claims
- 2939US2002030952A1Method and apparatus for discharging a superconducting magnetAMERICAN SUPERCONDUCTOR CORP A·Filed 2001·Application pending·0 cites
- 3036US6414853B2Method and apparatus for controlling a phase angle of AC power to keep DC voltage from an energy source constantAMERICAN SUPERCONDUCTOR CORP·Filed 1999·Granted Jul 2, 2002·10 cites·19 claims
- 3136US2010019776A1Method for analyzing superconducting wireFOLTS DOUGLAS C·Filed 2008·Application pending·0 cites
- 3226US6600973B1Method and apparatus for providing power to a utility networkAMERICAN SUPERCONDUTOR CORP·Filed 1999·Granted Jul 29, 2003·4 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →