Inventor

Sayed-Amr A. El-Hamamsy

Inventor

Schenectady, NY, US

Overview

1989–2015

Patent span

Electricity

Primary field (CPC H)

Patents· 45 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

H05Bprimary

H05BElectric heating26%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications23%

G01RMeasuring electric variables10%

H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems8%

H01JElectric discharge tubes or discharge lamps7%

H01GCapacitors5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h103%

A61BDiagnosis2%

G01VGeophysics2%

PatentTitleYear

9,128,202'Wireless data acquisition network and operating methods'2015 8,217,803'Wireless data acquisition network and operating methods'2012 6,437,567'Radio frequency coil for open magnetic resonance imaging system'2002 6,437,568'Low noise MRI scanner'2002 6,184,684'Method to automatically tune MRI RF coils'2001 6,157,276'MRI magnet assembly with non-conductive inner wall'2000 6,054,858'Method to automatically tune MRI RF coils'2000 5,861,838'Solderless `fingerprint` RF shield'1999 5,629,584'Accurate placement and retention of an amalgam in a electrodeless fluorescent lamp'1997 5,600,187'Electronically controllable capacitors using power MOSFET\'s'1997 5,532,512'Direct stacked and flip chip power semiconductor device structures'1996 5,517,086'Modified valley fill high power factor correction ballast'1996 5,488,269'Multi-resonant boost high power factor circuit'1996 5,481,161'Variable frequency generator for resonant power feedback'1996 5,479,102'Simulated load circuit for simulating the arc impedance of an electrodless discharge lamp'1995 5,463,285'Variable capacitor with very fine resolution'1995 5,461,284'Virtual fixture for reducing electromagnetic interaction between an electrodeless lamp and a metallic fixture'1995 5,446,350'Impedance matching circuit for an electrodeless fluorescent lamp ballast'1995 5,382,878'Auto-starting system for an electrodeless high intensity discharge lamp'1995 5,332,970'Method for measuring the impedance of an electrodeless arc discharge lamp'1994 5,325,018'Electrodeless fluorescent lamp shield for reduction of electromagnetic interference and dielectric losses'1994 5,187,412'Electrodeless high intensity discharge lamp'1993 5,170,337'Low-inductance package for multiple paralleled devices operating at high frequency'1992 5,153,484'Electrodeless high intensity discharge lamp excitation coil and ballast configuration for maximum efficiency'1992 5,134,345'Feedback system for stabilizing the arc discharge of a high intensity discharge lamp'1992 5,118,997'Dual feedback control for a high-efficiency class-d power amplifier circuit'1992 5,119,284'Efficient power supply post regulation'1992 5,118,996'Starting circuit for an electrodeless high intensity discharge lamp'1992 5,113,171'High-frequency current-viewing resistor'1992 5,107,185'Shielded starting coil for an electrodeless high intensity discharge lamp'1992 5,084,801'Liquid crystal variable capacitor and high intensity discharge lamp ballast employing same'1992 5,084,654'Starting aid for an electrodeless high intensity discharge lamp'1992 5,075,600'Piezoelectrically actuated variable capacitor'1991 5,075,839'Inductor shunt, output voltage regulation system for a power supply'1991 5,063,332'Feedback control system for a high-efficiency class-D power amplifier circuit'1991 5,059,868'Starting circuit for an electrodeless high intensity discharge lamp'1991 5,047,692'Integrated tuning capacitor network and heat sink for an electrodeless high intensity discharge lamp ballast'1991 5,047,693'Starting aid for an electrodeless high intensity discharge lamp'1991 5,043,859'Half bridge device package, packaged devices and circuits'1991 5,030,889'Lamp ballast configuration'1991 5,023,566'Driver for a high efficiency, high frequency Class-D power amplifier'1991 5,012,161'Power factor correction circuit'1991 4,910,439'Luminaire configuration for electrodeless high intensity discharge lamp'1990 4,902,942'Controlled leakage transformer for fluorescent lamp ballast including integral ballasting inductor'1990 4,872,741'Electrodeless panel discharge lamp liquid crystal display'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2002Patents assigned to GEN ELECTRIC (43)· patent assignee history

1989–2001Based in Schenectady, NY, US· patent location history

2002Based in Niskayuna, NY, US· patent location history

2012–2015Patents assigned to EL-HAMAMSY SAYED-AMR (2)· patent assignee history

2012–2015Patents assigned to MURIAS RONALD GERALD (2)· patent assignee history

2012–2015Patents assigned to SRD INNOVATIONS INC (2)· patent assignee history

2012–2015Based in Calgary, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GEN ELECTRIC	43	1989–2002
EL-HAMAMSY SAYED-AMRself	2	2012–2015
MURIAS RONALD GERALD	2	2012–2015
SRD INNOVATIONS INC	2	2012–2015

Locations

Location	Patents	Span
Schenectady, New York, US	41	1989–2001
Calgary, CA	2	2012–2015
Niskayuna, New York, US	2	2002