Inventor · disambiguated record
Sayed-Amr El-Hamamsy
Also filed as: EL-HAMAMSY SAYED A · EL-HAMAMSY SAYED-AMR · EL-HAMAMSY SAYED-AMR A · EL-HAMAMSY SAYED-AMR AHMES
47 granted patents·2 pending applications·2,589 citations·filing 1987–2021
99Inventor score
Files withGEN ELECTRIC43EL-HAMAMSY SAYED-AMR2MAGE NETWORKS INC2MURIAS RONALD GERALD1SRD INNOVATIONS INC1
Top patents by PatentIndex Score
49 records- 0198US6437567B1Radio frequency coil for open magnetic resonance imaging systemGEN ELECTRIC·Filed 1999·Granted Aug 20, 2002·237 cites·9 claims
- 0298US5118997ADual feedback control for a high-efficiency class-d power amplifier circuitGEN ELECTRIC·Filed 1991·Granted Jun 2, 1992·332 cites·8 claims
- 0398US5075839AInductor shunt, output voltage regulation system for a power supplyGEN ELECTRIC·Filed 1990·Granted Dec 24, 1991·204 cites·16 claims
- 0497US5532512ADirect stacked and flip chip power semiconductor device structuresGEN ELECTRIC·Filed 1994·Granted Jul 2, 1996·377 cites·22 claims
- 0597US5023566ADriver for a high efficiency, high frequency Class-D power amplifierGEN ELECTRIC·Filed 1989·Granted Jun 11, 1991·118 cites·10 claims
- 0696US4902942AControlled leakage transformer for fluorescent lamp ballast including integral ballasting inductorGEN ELECTRIC·Filed 1988·Granted Feb 20, 1990·95 cites·8 claims
- 0793US6437568B1Low noise MRI scannerGEN ELECTRIC·Filed 2000·Granted Aug 20, 2002·76 cites·17 claims
- 0893US5030889ALamp ballast configurationGEN ELECTRIC·Filed 1989·Granted Jul 9, 1991·72 cites·14 claims
- 0990US6184684B1Method to automatically tune MRI RF coilsGEN ELECTRIC·Filed 2000·Granted Feb 6, 2001·43 cites·13 claims
- 1090US5119284AEfficient power supply post regulationGEN ELECTRIC·Filed 1991·Granted Jun 2, 1992·94 cites·19 claims
- 1187US5461284AVirtual fixture for reducing electromagnetic interaction between an electrodeless lamp and a metallic fixtureGEN ELECTRIC·Filed 1994·Granted Oct 24, 1995·58 cites·18 claims
- 1286US5488269AMulti-resonant boost high power factor circuitGEN ELECTRIC·Filed 1995·Granted Jan 30, 1996·71 cites·14 claims
- 1386US5084801ALiquid crystal variable capacitor and high intensity discharge lamp ballast employing sameGEN ELECTRIC·Filed 1991·Granted Jan 28, 1992·59 cites·19 claims
- 1485US6054858AMethod to automatically tune MRI RF coilsGEN ELECTRIC·Filed 1997·Granted Apr 25, 2000·56 cites·5 claims
- 1582US5325018AElectrodeless fluorescent lamp shield for reduction of electromagnetic interference and dielectric lossesGEN ELECTRIC·Filed 1992·Granted Jun 28, 1994·39 cites·13 claims
- 1681US6157276AMRI magnet assembly with non-conductive inner wallGEN ELECTRIC·Filed 1998·Granted Dec 5, 2000·46 cites·5 claims
- 1780US4910439ALuminaire configuration for electrodeless high intensity discharge lampGEN ELECTRIC·Filed 1987·Granted Mar 20, 1990·36 cites·20 claims
- 1878US5463285AVariable capacitor with very fine resolutionGEN ELECTRIC·Filed 1994·Granted Oct 31, 1995·37 cites·7 claims
- 1977US5446350AImpedance matching circuit for an electrodeless fluorescent lamp ballastGEN ELECTRIC·Filed 1994·Granted Aug 29, 1995·40 cites·3 claims
- 2076US5043859AHalf bridge device package, packaged devices and circuitsGEN ELECTRIC·Filed 1989·Granted Aug 27, 1991·47 cites·23 claims
- 2175US5075600APiezoelectrically actuated variable capacitorGEN ELECTRIC·Filed 1990·Granted Dec 24, 1991·39 cites·20 claims
- 2273US8217803B2Wireless data acquisition network and operating methodsEL-HAMAMSY SAYED-AMR·Filed 2008·Granted Jul 10, 2012·13 cites·23 claims
- 2372US5629584AAccurate placement and retention of an amalgam in a electrodeless fluorescent lampGEN ELECTRIC·Filed 1995·Granted May 13, 1997·30 cites·14 claims
- 2472US5517086AModified valley fill high power factor correction ballastGEN ELECTRIC·Filed 1995·Granted May 14, 1996·34 cites·6 claims
- 2572US5170337ALow-inductance package for multiple paralleled devices operating at high frequencyGEN ELECTRIC·Filed 1992·Granted Dec 8, 1992·46 cites·20 claims
- 2672US4872741AElectrodeless panel discharge lamp liquid crystal displayGEN ELECTRIC·Filed 1988·Granted Oct 10, 1989·30 cites·20 claims
- 2771US5063332AFeedback control system for a high-efficiency class-D power amplifier circuitGEN ELECTRIC·Filed 1990·Granted Nov 5, 1991·29 cites·10 claims
- 2868US5059868AStarting circuit for an electrodeless high intensity discharge lampGEN ELECTRIC·Filed 1990·Granted Oct 22, 1991·25 cites·17 claims
- 2967US5600187AElectronically controllable capacitors using power MOSFET'sGEN ELECTRIC·Filed 1994·Granted Feb 4, 1997·25 cites·16 claims
- 3066US5134345AFeedback system for stabilizing the arc discharge of a high intensity discharge lampGEN ELECTRIC·Filed 1991·Granted Jul 28, 1992·24 cites·5 claims
- 3162US5012161APower factor correction circuitGEN ELECTRIC·Filed 1989·Granted Apr 30, 1991·20 cites·10 claims
- 3258US5187412AElectrodeless high intensity discharge lampGEN ELECTRIC·Filed 1992·Granted Feb 16, 1993·17 cites·12 claims
- 3356US11606738B2Routing method and device of mobile ad-hoc networksMAGE NETWORKS INC·Filed 2021·Granted Mar 14, 2023·0 cites·32 claims
- 3456US5047692AIntegrated tuning capacitor network and heat sink for an electrodeless high intensity discharge lamp ballastGEN ELECTRIC·Filed 1990·Granted Sep 10, 1991·17 cites·11 claims
- 3554US5047693AStarting aid for an electrodeless high intensity discharge lampGEN ELECTRIC·Filed 1990·Granted Sep 10, 1991·15 cites·24 claims
- 3652US5153484AElectrodeless high intensity discharge lamp excitation coil and ballast configuration for maximum efficiencyGEN ELECTRIC·Filed 1991·Granted Oct 6, 1992·14 cites·6 claims
- 3751US5118996AStarting circuit for an electrodeless high intensity discharge lampGEN ELECTRIC·Filed 1991·Granted Jun 2, 1992·13 cites·12 claims
- 3850US11184832B2Routing method and device of mobile ad-hoc networksMAGE NETWORKS INC·Filed 2020·Granted Nov 23, 2021·0 cites·22 claims
- 3947US9128202B2Wireless data acquisition network and operating methodsMURIAS RONALD GERALD·Filed 2008·Granted Sep 8, 2015·2 cites·18 claims
- 4047US5481161AVariable frequency generator for resonant power feedbackGEN ELECTRIC·Filed 1995·Granted Jan 2, 1996·11 cites·13 claims
- 4147US5479102ASimulated load circuit for simulating the arc impedance of an electrodless discharge lampGEN ELECTRIC·Filed 1994·Granted Dec 26, 1995·10 cites·5 claims
- 4246US2015270624A1Rf wave benderSRD INNOVATIONS INC·Filed 2014·Application pending·0 cites
- 4345US5382878AAuto-starting system for an electrodeless high intensity discharge lampGEN ELECTRIC·Filed 1992·Granted Jan 17, 1995·10 cites·23 claims
- 4441US5332970AMethod for measuring the impedance of an electrodeless arc discharge lampGEN ELECTRIC·Filed 1992·Granted Jul 26, 1994·8 cites·5 claims
- 4536US5084654AStarting aid for an electrodeless high intensity discharge lampGEN ELECTRIC·Filed 1990·Granted Jan 28, 1992·5 cites·20 claims
- 4634US5113171AHigh-frequency current-viewing resistorGEN ELECTRIC·Filed 1990·Granted May 12, 1992·4 cites·1 claims
- 4734US5107185AShielded starting coil for an electrodeless high intensity discharge lampGEN ELECTRIC·Filed 1990·Granted Apr 21, 1992·8 cites·8 claims
- 4833US5861838ASolderless `fingerprint` RF shieldGEN ELECTRIC·Filed 1997·Granted Jan 19, 1999·3 cites·6 claims
- 4930US2013316749A1Wireless data pipelineEL-HAMAMSY SAYED-AMR·Filed 2012·Application pending·0 cites
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