Inventor · disambiguated record
Peter Willard Hammond
Also filed as: HAMMOND PETER · HAMMOND PETER W · HAMMOND PETER WILLARD · PETER HAMMOND
37 granted patents·4 pending applications·2,806 citations·filing 1990–2018
98Inventor score
Files withROBICON CORP15HAMMOND PETER WILLARD6SIEMENS INDUSTRY INC4SIEMENS AG3SIEMENS ENERGY & AUTOMAT3
Top patents by PatentIndex Score
41 records- 0198US6087738AVariable output three-phase transformerROBICON CORP·Filed 1998·Granted Jul 11, 2000·205 cites·11 claims
- 0298US5986909AMultiphase power supply with plural series connected cells and failed cell bypassROBICON CORP·Filed 1998·Granted Nov 16, 1999·397 cites·47 claims
- 0398US5625545AMedium voltage PWM drive and methodHALMAR ROBICON GROUP·Filed 1994·Granted Apr 29, 1997·467 cites·48 claims
- 0497US8008923B2Method for bypassing a power cell of a power supplySIEMENS INDUSTRY INC·Filed 2007·Granted Aug 30, 2011·39 cites·18 claims
- 0597US6236580B1Modular multi-level adjustable supply with series connected active inputsROBICON CORP·Filed 2000·Granted May 22, 2001·194 cites·19 claims
- 0697US6166513AFour-quadrant AC-AC drive and methodROBICON CORP·Filed 2000·Granted Dec 26, 2000·85 cites·5 claims
- 0796US8441147B2Device and system for bypassing a power cell of a power supplyHAMMOND PETER WILLARD·Filed 2010·Granted May 14, 2013·28 cites·17 claims
- 0896US6301130B1Modular multi-level adjustable supply with parallel connected active inputsROBICON CORP·Filed 2000·Granted Oct 9, 2001·162 cites·23 claims
- 0995US6014323AMultiphase power converterROBICON CORP·Filed 1998·Granted Jan 11, 2000·155 cites·23 claims
- 1094US8093764B2Method and system for bypassing a power cell of a power supplyHAMMOND PETER WILLARD·Filed 2008·Granted Jan 10, 2012·31 cites·18 claims
- 1194US6313600B1Control method and apparatus for insufficient input voltage in an AC driveROBICON CORP·Filed 2000·Granted Nov 6, 2001·71 cites·14 claims
- 1294US6262555B1Apparatus and method to generate braking torque in an AC driveROBICON CORP·Filed 1999·Granted Jul 17, 2001·76 cites·42 claims
- 1392US6417644B2Apparatus and method to generate braking torque in an AC driveROBICON CORP·Filed 2001·Granted Jul 9, 2002·47 cites·15 claims
- 1491US7568931B2Integrated power cell bypass assembly and power supply including sameSIEMENS ENERGY & AUTOMAT·Filed 2007·Granted Aug 4, 2009·32 cites·17 claims
- 1591US5638263ALow and medium voltage PWM AC/DC power conversion method and apparatusHALMAR ROBICON GROUP·Filed 1994·Granted Jun 10, 1997·175 cites·43 claims
- 1689US7800254B2System for bypassing a power cell of a power supplySIEMENS INDUSTRY INC·Filed 2007·Granted Sep 21, 2010·28 cites·20 claims
- 1789US6222284B1Multiphase power supply with series connected power cells with failed cell bypassROBICON CORP·Filed 1999·Granted Apr 24, 2001·79 cites·5 claims
- 1889US5619407AAutotransformerROBICON CORP·Filed 1996·Granted Apr 8, 1997·97 cites·12 claims
- 1989US5241152ACircuit for detecting and diverting an electrical arc in a glow discharge apparatusANDERSON GLEN L·Filed 1990·Granted Aug 31, 1993·118 cites·27 claims
- 2088US8988860B2Power supplies having power electronic modules and replacement methods thereofHAMMOND PETER WILLARD·Filed 2012·Granted Mar 24, 2015·8 cites·20 claims
- 2188US7511975B2System and method for limiting AC inrush currentSIEMENS ENERGY & AUTOMAT·Filed 2006·Granted Mar 31, 2009·31 cites·20 claims
- 2288US5905642AApparatus and method to reduce common mode voltage from current source drivesROBICON CORP·Filed 1997·Granted May 18, 1999·89 cites·29 claims
- 2387US7948340B2Three-phase multi-winding deviceSIEMENS INDUSTRY INC·Filed 2008·Granted May 24, 2011·10 cites·19 claims
- 2483US9277683B2Liquid cooled electronic modules and methods for replacing the sameIONESCU BOGDAN·Filed 2013·Granted Mar 1, 2016·10 cites·15 claims
- 2582US6411530B2Drive and power supply with phase shifted carriersROBICON CORP·Filed 2001·Granted Jun 25, 2002·45 cites·10 claims
- 2677US6762947B2Control method and apparatus to reduce current through DC capacitor linking two static convertersROBICON CORP·Filed 2002·Granted Jul 13, 2004·32 cites·30 claims
- 2776US8896290B2Hall effect current sensor for medium-voltage applicationsHAMMOND PETER WILLARD·Filed 2012·Granted Nov 25, 2014·3 cites·14 claims
- 2874US6472851B2Hybrid tap-changing transformer with full range of control and high resolutionROBICON CORP·Filed 2001·Granted Oct 29, 2002·22 cites·22 claims
- 2970US8169107B2Method and system for reducing switching losses in a high-frequency multi-cell power supplyHAMMOND PETER WILLARD·Filed 2009·Granted May 1, 2012·9 cites·19 claims
- 3068US8207812B2System for isolating a medium voltageROC ALBERT·Filed 2009·Granted Jun 26, 2012·8 cites·16 claims
- 3165US9270069B2Angled electrical contactorSIEMENS INDUSTRY INC·Filed 2014·Granted Feb 23, 2016·4 cites·20 claims
- 3264US5038808AHigh frequency ultrasonic systemS & K PRODUCTS INTERNATIONAL I·Filed 1990·Granted Aug 13, 1991·40 cites·15 claims
- 3360US2018374667A1Electrical contact apparatus, assemblies, and methods of operationSIEMENS AG·Filed 2018·Application pending·0 cites
- 3459US7405498B2Multi-level active filterSIEMENS ENERGY & AUTOMAT·Filed 2006·Granted Jul 29, 2008·4 cites·20 claims
- 3557US8319589B2Position sensor for mechanically latching solenoidHAMMOND PETER WILLARD·Filed 2009·Granted Nov 27, 2012·1 cites·11 claims
- 3656US9525259B2Electrical contactorSIEMENS AG·Filed 2015·Granted Dec 20, 2016·1 cites·19 claims
- 3755US2016196944A1Electrical contact apparatus, assemblies, and methods of operationSIEMENS AG·Filed 2016·Application pending·0 cites
- 3852US8699210B2Integrated water current connection for motor driveAIELLO MARC F·Filed 2008·Granted Apr 15, 2014·1 cites·20 claims
- 3949US9875860B2Fiber optic ring for bypass system in multi-cell power supplyMALAPELLE PAOLO·Filed 2013·Granted Jan 23, 2018·2 cites·18 claims
- 4049US2014002215A1Electrical contact apparatus, assemblies, and methods of operationIONESCU BOGDAN·Filed 2013·Application pending·0 cites
- 4138US2008174182A1Method for operating a multi-cell power supply having an integrated power cell bypass assemblySIEMENS ENERGY & AUTOMATION·Filed 2007·Application pending·0 cites
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