Inventor · disambiguated record
Armando Guzman-Casillas
Also filed as: ANDERSON LUTHER S · GUZMAN-CASILLAS ARMANDO
60 granted patents·10 pending applications·1,828 citations·filing 1995–2025
99Inventor score
Files withSCHWEITZER ENGINEERING LAB INC55CALERO JORGE FERNANDO2GONG YANFENG2GUZMAN-CASILLAS ARMANDO2ZWEIGLE GREGARY C2
Top patents by PatentIndex Score
70 records- 0199US9627881B2Fault detection in electric power delivery systems using underreach, directional, and traveling wave elementsSCHWEITZER ENGINEERING LAB INC·Filed 2016·Granted Apr 18, 2017·26 cites·12 claims
- 0299US9594112B2Fault detection in electric power delivery systems using underreach, directional, and traveling wave elementsSCHWEITZER ENGINEERING LAB INC·Filed 2015·Granted Mar 14, 2017·29 cites·23 claims
- 0399US8655609B2Fault location using traveling wavesSCHWEITZER ENGINEERING LAB INC·Filed 2012·Granted Feb 18, 2014·57 cites·34 claims
- 0498US9470748B2Fault detection in electric power delivery systems using underreach, directional, and traveling wave elementsSCHWEITZER ENGINEERING LAB INC·Filed 2015·Granted Oct 18, 2016·31 cites·24 claims
- 0598US8990036B1Power line parameter adjustment and fault location using traveling wavesSCHWEITZER ENGINEERING LAB INC·Filed 2014·Granted Mar 24, 2015·39 cites·21 claims
- 0698US8781766B2Fault location using traveling wavesSCHWEITZER ENGINEERING LAB INC·Filed 2013·Granted Jul 15, 2014·31 cites·19 claims
- 0798US6845333B2Protective relay with synchronized phasor measurement capability for use in electric power systemsSCHWEITZER ENGINEERING LAB INC·Filed 2003·Granted Jan 18, 2005·134 cites·22 claims
- 0898US6662124B2Protective relay with synchronized phasor measurement capability for use in electric power systemsSCHWEITZER ENGINEERING LAB INC·Filed 2002·Granted Dec 9, 2003·143 cites·15 claims
- 0997US10310005B2Time-domain distance line protection of electric power delivery systemsSCHWEITZER ENGINEERING LAB INC·Filed 2018·Granted Jun 4, 2019·7 cites·19 claims
- 1097US10090664B2Time-domain directional line protection of electric power delivery systemsSCHWEITZER ENGINEERING LAB INC·Filed 2016·Granted Oct 2, 2018·11 cites·20 claims
- 1197US7630863B2Apparatus, method, and system for wide-area protection and control using power system data having a time component associated therewithSCHWEITZER ENGINEERING LAB INC·Filed 2007·Granted Dec 8, 2009·117 cites·24 claims
- 1297US7480580B2Apparatus and method for estimating synchronized phasors at predetermined times referenced to an absolute time standard in an electrical systemSCHWEITZER ENGINEERING LAB INC·Filed 2006·Granted Jan 20, 2009·47 cites·62 claims
- 1396US7930117B2Systems and methods for power swing and out-of-step detection using time stamped dataSCHWEITZER ENGINEERING LAB INC·Filed 2008·Granted Apr 19, 2011·34 cites·65 claims
- 1496US7710693B2Apparatus and method for providing protection for a synchronous electrical generator in a power systemSCHWEITZER ENGINEERING LAB INC·Filed 2006·Granted May 4, 2010·77 cites·16 claims
- 1596US7196884B2Apparatus and method for detecting the loss of a current transformer connection coupling a current differential relay to an element of a power systemSCHWEITZER ENGINEERING LAB INC·Filed 2005·Granted Mar 27, 2007·47 cites·39 claims
- 1695US10310004B2Time-domain differential line protection of electric power delivery systemsSCHWEITZER ENGINEERING LAB INC·Filed 2016·Granted Jun 4, 2019·6 cites·20 claims
- 1795US8558551B2Fault location in electric power delivery systemsMYNAM MANGAPATHIRAO VENKATA·Filed 2011·Granted Oct 15, 2013·25 cites·22 claims
- 1895US7856327B2State and topology processorSCHWEITZER ENGINEERING LAB INC·Filed 2008·Granted Dec 21, 2010·25 cites·74 claims
- 1995US7570469B2Dynamically configurable relay element and related methodsSCHWEITZER ENGINEERING LAB INC·Filed 2006·Granted Aug 4, 2009·36 cites·40 claims
- 2094US8525522B2Fault location in electric power delivery systemsGONG YANFENG·Filed 2010·Granted Sep 3, 2013·57 cites·49 claims
- 2193US8655608B2Symmetrical component amplitude and phase comparators for line protection using time stamped dataGUZMAN-CASILLAS ARMANDO·Filed 2008·Granted Feb 18, 2014·30 cites·27 claims
- 2292US9257827B2Electrical power system phase and ground protection using an adaptive quadrilateral characteristicCALERO JORGE FERNANDO·Filed 2013·Granted Feb 9, 2016·15 cites·9 claims
- 2392US8942954B2Fault location in a non-homogeneous electric power lineGONG YANFENG·Filed 2010·Granted Jan 27, 2015·20 cites·39 claims
- 2492US6411865B1System for protection zone selection in microprocessor-based relays in an electric power systemSCHWEITZER ENGINEERING LAB INC·Filed 2000·Granted Jun 25, 2002·80 cites·11 claims
- 2592US6356421B1System for power transformer differential protectionSCHWEITZER ENGINEERING LABS IN·Filed 1999·Granted Mar 12, 2002·109 cites·16 claims
- 2691US10261567B2Automatically configurable intelligent electronic deviceSCHWEITZER ENGINEERING LAB INC·Filed 2014·Granted Apr 16, 2019·9 cites·18 claims
- 2791US9941684B2Phase and ground protection using tilt-limited adaptive quadrilateral characteristicSCHWEITZER ENGINEERING LAB INC·Filed 2015·Granted Apr 10, 2018·6 cites·28 claims
- 2891US9588168B2Fault location using traveling wavesSCHWEITZER ENGINEERING LAB INC·Filed 2015·Granted Mar 7, 2017·9 cites·32 claims
- 2991US8410785B2Electrical power system phase and ground protection using an adaptive quadrilateral characteristicsCALERO JORGE FERNANDO·Filed 2010·Granted Apr 2, 2013·14 cites·14 claims
- 3091US6341055B1Restraint-type differential relaySCHWEITZER ENGINEERING LAB INC·Filed 1999·Granted Jan 22, 2002·83 cites·15 claims
- 3190US8405944B2Distributed bus differential protection using time-stamped dataDONOLO MARCOS A·Filed 2009·Granted Mar 26, 2013·17 cites·26 claims
- 3290US6603298B2System for estimating the frequency of the power signal on a power transmission lineSCHWEITZER ENGINEERING LAB INC·Filed 2001·Granted Aug 5, 2003·51 cites·9 claims
- 3388US10422827B2Time-domain line differential protection of electric power delivery systemsSCHWEITZER ENGINEERING LAB INC·Filed 2018·Granted Sep 24, 2019·2 cites·20 claims
- 3488US10302690B2Traveling wave based single end fault locationSCHWEITZER ENGINEERING LAB INC·Filed 2018·Granted May 28, 2019·3 cites·23 claims
- 3588US10295585B2Traveling wave based single end fault locationSCHWEITZER ENGINEERING LAB INC·Filed 2017·Granted May 21, 2019·3 cites·20 claims
- 3687US11307264B2Phase selection for traveling wave fault detection systemsSCHWEITZER ENGINEERING LAB INC·Filed 2017·Granted Apr 19, 2022·3 cites·12 claims
- 3787US8321162B2Minimizing circulating current using time-aligned dataLABUSCHAGNE CASPER A·Filed 2010·Granted Nov 27, 2012·17 cites·29 claims
- 3887US7987059B2Real-time power system oscillation detection using modal analysisSCHWEITZER ENGINEERING LAB INC·Filed 2008·Granted Jul 26, 2011·29 cites·36 claims
- 3986US10585133B2Electric power fault protection device using single-ended traveling wave fault location estimationSCHWEITZER ENGINEERING LAB INC·Filed 2019·Granted Mar 10, 2020·3 cites·20 claims
- 4085US8112235B2State and topology processorSCHWEITZER EDMUND O III·Filed 2010·Granted Feb 7, 2012·4 cites·31 claims
- 4185US6757146B2Instantaneous overcurrent element for heavily saturated current in a power systemSCHWEITZER ENGINEERING LAB INC·Filed 2002·Granted Jun 29, 2004·38 cites·7 claims
- 4283US8346402B2Islanding detection in an electrical power delivery systemSCHWEITZER ENGINEERING LAB INC·Filed 2010·Granted Jan 1, 2013·9 cites·35 claims
- 4383US6608742B2Voltage and current source selection system for use in the protection, automation and control of an electric power systemSCHWEITZER ENGINEERING LAB INC·Filed 2001·Granted Aug 19, 2003·36 cites·11 claims
- 4483US6028754ASystem for preventing undesired protective relay tripping actions due to coupling capacitor voltage transformer transientsSCHWEITZER ENGINEERING LAB INC·Filed 1997·Granted Feb 22, 2000·54 cites·5 claims
- 4582US10483747B2Detection of an electric power system fault direction using traveling wavesSCHWEITZER ENGINEERING LAB INC·Filed 2016·Granted Nov 19, 2019·2 cites·21 claims
- 4680US5963404ARestricted earth fault protection for transformers using a directional elementSCHWEITZER ENGINEERING LAB INC·Filed 1998·Granted Oct 5, 1999·46 cites·14 claims
- 4780US5731943AProtective relay having out-of-step logic capabilitySCHWEITZER ENGINEERING LAB INC·Filed 1996·Granted Mar 24, 1998·50 cites·11 claims
- 4880US5694281AZero sequence voltage-polarized directional element for protective relaysSCHWEITZER ENGINEERING LAB INC·Filed 1995·Granted Dec 2, 1997·50 cites·11 claims
- 4979US7582986B2Compensated inverse-time undervoltage load shedding systemsSCHWEITZER ENGINEERING LAB INC·Filed 2004·Granted Sep 1, 2009·42 cites·38 claims
- 5077US8494795B2Apparatus and method for estimating synchronized phasors at predetermined times referenced to a common time standard in an electrical systemZWEIGLE GREGARY C·Filed 2010·Granted Jul 23, 2013·4 cites·72 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →