Inventor · disambiguated record
Albert L. Markunas
Also filed as: MARKUNAS ALBERT · MARKUNAS ALBERT L
42 granted patents·2,326 citations·filing 1981–2021
99Inventor score
Top patents by PatentIndex Score
42 records- 0198US5594322AStarter/generator system with variable-frequency exciter controlSUNDSTRAND CORP·Filed 1993·Granted Jan 14, 1997·233 cites·21 claims
- 0298US5581168AStarter/generator system with DC link current controlSUNDSTRAND CORP·Filed 1994·Granted Dec 3, 1996·129 cites·17 claims
- 0398US5384527ARotor position detector with back EMF voltage estimationSUNDSTRAND CORP·Filed 1993·Granted Jan 24, 1995·142 cites·36 claims
- 0497US5493200AControl for a brushless generatorSUNDSTRAND CORP·Filed 1993·Granted Feb 20, 1996·188 cites·21 claims
- 0597US5461293ARotor position detectorSUNDSTRAND CORP·Filed 1993·Granted Oct 24, 1995·119 cites·12 claims
- 0697US5430362AEngine starting system utilizing multiple controlled acceleration ratesSUNDSTRAND CORP·Filed 1993·Granted Jul 4, 1995·198 cites·20 claims
- 0796US7884581B2Active damping for synchronous generator torsional oscillationsHAMILTON SUNDSTRAND CORP·Filed 2010·Granted Feb 8, 2011·14 cites·13 claims
- 0896US4370560ACompressor load control for an auxiliary power unitSUNDSTRAND CORP·Filed 1981·Granted Jan 25, 1983·85 cites·3 claims
- 0995US8593095B2Wound field synchronous machine rotor tracking using a carrier injection sensorless signal and exciter currentMARKUNAS ALBERT L·Filed 2011·Granted Nov 26, 2013·17 cites·16 claims
- 1095US5495162APosition-and-velocity sensorless control for starter generator electrical system using generator back-EMF voltageSUNDSTRAND CORP·Filed 1993·Granted Feb 27, 1996·100 cites·28 claims
- 1195US5495163AControl for a brushless generator operable in generating and starting modesSUNDSTRAND CORP·Filed 1993·Granted Feb 27, 1996·87 cites·31 claims
- 1294US6967461B1North-south pole determination for carrier injection sensorless position sensing systemsHAMILTON SUNDSTRAND CORP·Filed 2004·Granted Nov 22, 2005·64 cites·12 claims
- 1393US8169172B2Synchronous disturbance suppression in a variable speed motor driveMARKUNAS ALBERT L·Filed 2010·Granted May 1, 2012·15 cites·18 claims
- 1493US7132816B1Brushless wound field synchronous machine rotor position tracking with exciter stator current harmonic trackingHAMILTON SUNDSTRAND CORP·Filed 2006·Granted Nov 7, 2006·31 cites·40 claims
- 1593US4949021AVariable speed constant frequency start system with selectable input power limitingSUNSTRAND CORP·Filed 1988·Granted Aug 14, 1990·65 cites·17 claims
- 1691US5747971APosition and velocity sensorless control for a motor generator system operated as a motor using exciter impedanceSUNDSTRAND CORP·Filed 1996·Granted May 5, 1998·75 cites·21 claims
- 1791US5036267AAircraft turbine start from a low voltage batterySUNDSTRAND CORP·Filed 1989·Granted Jul 30, 1991·55 cites·7 claims
- 1889US4743163ARam air turbine control systemSUNDSTRAND CORP·Filed 1985·Granted May 10, 1988·62 cites·15 claims
- 1988US7034497B2Carrier injection sensorless control of aircraft variable frequency wound field synchronous starter/generatorsHAMILTON SUNDSTRAND CORP·Filed 2004·Granted Apr 25, 2006·41 cites·13 claims
- 2087US8362728B2Rotor position detection at standstill and low speeds using a PMG to operate a wound field synchronous machineHAMILTON SUNDSTRAND CORP·Filed 2010·Granted Jan 29, 2013·7 cites·20 claims
- 2186US7808215B2Active damping for synchronous generator torsional oscillationsHAMILTON SUNDSTRAND CORP·Filed 2007·Granted Oct 5, 2010·14 cites·15 claims
- 2286US5488286AMethod and apparatus for starting a synchronous machineSUNDSTRAND CORP·Filed 1993·Granted Jan 30, 1996·52 cites·11 claims
- 2386US5327335AHarmonic feedback control for an inverterSUNDSTRAND CORP·Filed 1992·Granted Jul 5, 1994·72 cites·25 claims
- 2484US7072790B2Shaft sensorless angular position and velocity estimation for a dynamoelectric machine based on extended rotor fluxHAMILTON SUNDSTRAND CORP·Filed 2004·Granted Jul 4, 2006·34 cites·26 claims
- 2583US4617958AControl valveSUNDSTRAND CORP·Filed 1985·Granted Oct 21, 1986·61 cites·20 claims
- 2682US4487109AElectro-hydraulic control system for a power drive unitSUNDSTRAND CORP·Filed 1982·Granted Dec 11, 1984·37 cites·13 claims
- 2781US9543876B2Three phase flux switching generator in a three stage wound field synchronous machineHAMILTON SUNDSTRAND CORP·Filed 2013·Granted Jan 10, 2017·8 cites·16 claims
- 2881US8217630B2Electric load damper for damping torsional oscillationMARKUNAS ALBERT L·Filed 2009·Granted Jul 10, 2012·16 cites·19 claims
- 2980US5007245AVapor cycle system with multiple evaporator load control and superheat controlSUNDSTRAND CORP·Filed 1989·Granted Apr 16, 1991·33 cites·22 claims
- 3078US5233286AHybrid 270 volt DC systemSUNDSTRAND CORP·Filed 1991·Granted Aug 3, 1993·74 cites·16 claims
- 3177US4751438ABrushless DC motor controlSUNDSTRAND CORP·Filed 1985·Granted Jun 14, 1988·31 cites·11 claims
- 3275US4591317ADual pump controlsSUNDSTRAND CORP·Filed 1983·Granted May 27, 1986·25 cites·21 claims
- 3374US5132894AElectric power generating system with active dampingSUNDSTRAND CORP·Filed 1990·Granted Jul 21, 1992·43 cites·12 claims
- 3470US8056417B2Torque oscillation monitoringMARKUNAS ALBERT L·Filed 2009·Granted Nov 15, 2011·7 cites·13 claims
- 3570US7583046B2Rotor position detection at standstill and low speeds using a low power permanent magnet machineHAMILTON SUNDSTRAND CORP·Filed 2007·Granted Sep 1, 2009·7 cites·11 claims
- 3667US5383107AHarmonic control for an inverter by use of an objective functionSUNDSTRAND CORP·Filed 1992·Granted Jan 17, 1995·35 cites·35 claims
- 3766US5444349AStarting control for an electromagnetic machineSUNDSTRAND CORP·Filed 1993·Granted Aug 22, 1995·24 cites·22 claims
- 3861US5065577AHydromechanical displacement control for a power drive unitSUNDSTRAND CORP·Filed 1989·Granted Nov 19, 1991·17 cites·11 claims
- 3957US11545921B2Active damping of mechanical drivetrain oscillations using generator voltage regulatorHAMILTON SUNDSTRAND CORP·Filed 2021·Granted Jan 3, 2023·0 cites·18 claims
- 4054US7265507B1Angular position and velocity estimation for synchronous machines based on extended rotor fluxHAMILTON SUNDSTRAND CORP·Filed 2006·Granted Sep 4, 2007·3 cites·6 claims
- 4141US9374027B2Sensorless rotor position determination for a wound field synchronous machineMARKUNAS ALBERT L·Filed 2012·Granted Jun 21, 2016·0 cites·18 claims
- 4239US5062265AHydromechanical control of differential pressure across a variable displacement hydraulic motorSUNDSTRAND CORP·Filed 1989·Granted Nov 5, 1991·6 cites·13 claims
Join the waitlist — get patent alerts
Get an alert when Albert L. Markunas files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →