Inventor

Donald R. Preslar

Inventor

Somerville, NJ, US

Overview

30→

Patents

1976–2009

Patent span

Electricity

Primary field (CPC H)

Patents· 30 as inventor

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

H03Kprimary

H03KPulse technique22%

H03FAmplifiers12%

H10DInorganic electric semiconductor devices10%

G11CStatic stores8%

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%

Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications8%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h106%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h106%

G01RMeasuring electric variables4%

E04HBuildings or like structures for particular purposes2%

PatentTitleYear

7,518,430'Mechanism for providing over-voltage protection during power up of DC-DC converter'2009 7,088,151'High voltage gate driver using a low voltage multi-level current pulse translator'2006 7,031,175'System and method of detecting phase body diode using a comparator in a synchronous rectified FET driver'2006 6,940,262'PWM-based DC-DC converter with assured dead time control exhibiting no shoot-through current and independent of type of FET used'2005 6,919,758'Controller for FET pass device'2005 6,873,191'Mechanism for providing over-voltage protection during power up of DC-DC converter'2005 6,727,745'Integrated circuit with current sense circuit and associated methods'2004 6,603,358'Integrated circuit with current-limited power output and associated method'2003 6,531,908'Power output stage for switching inductive loads with reduced radiation emission'2003 6,118,336'Start-up circuit for self oscillating class D modulator'2000 6,107,875'Variable frequency class D modulator with built in soft clipping and frequency limiting'2000 6,091,274'Optimum placement of bypass capacitors in a network for improving electro-magnetic interference response'2000 6,069,502'Sample-and-hold circuit having reduced subthreshold conduction effects and related methods'2000 6,016,067'Sample-and-hold circuit having reduced amplifier offset effects and related methods'2000 6,002,277'Sample-and-hold circuit having reduced parasitic diode effects and related methods'1999 5,920,224'Network for improving electro-magnetic interference response'1999 5,900,643'Integrated circuit chip structure for improved packaging'1999 5,640,346'Electrically programmable memory cell'1997 5,608,259'Reverse current flow prevention in a diffused resistor'1997 5,570,259'Circuit arrangement for controlling a load and for recognizing a line interruption'1996 5,347,169'Inductive load dump circuit'1994 4,731,589'Constant current load and level shifter circuitry'1988 4,442,409'Push-pull non-complementary transistor amplifier'1984 4,357,548'Circuit arrangement using emitter coupled logic and integrated injection logic'1982 4,322,643'Digital phase comparator with improved sensitivity for small phase differences'1982 4,282,538'Method of integrating semiconductor components'1981 4,199,860'Method of integrating semiconductor components'1980 4,127,820'Electrical circuit for multiplexing and dividing different bands or frequencies'1978 4,127,860'Integrated circuit mesa bipolar device on insulating substrate incorporating Schottky barrier contact'1978 3,979,607'Electrical circuit'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1988Patents assigned to RCA CORP (9)· patent assignee history

1976–2004Based in Somerville, NJ, US· patent location history

1982–1984Based in Plainfield, NJ, US· patent location history

1994–1997Based in Three Bridges, NJ, US· patent location history

1996–2003Patents assigned to SIEMENS AG (2)· patent assignee history

1996–2003Based in Ringoes, NJ, US· patent location history

1997–1999Patents assigned to HARRIS CORP (3)· patent assignee history

1999–2000Patents assigned to INTERSIL CORP (6)· patent assignee history

2003–2009Patents assigned to INTERSIL INC (8)· patent assignee history

2005–2009Based in Hillsborough, NJ, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RCA CORP	9	1976–1988
INTERSIL INC	8	2003–2009
INTERSIL CORP	6	1999–2000
HARRIS CORP	3	1997–1999
SIEMENS AG	2	1996–2003

Locations

Location	Patents	Span
Somerville, New Jersey, US	16	1976–2004
Hillsborough, New Jersey, US	6	2005–2009
Plainfield, New Jersey, US	3	1982–1984
Ringoes, New Jersey, US	2	1996–2003
Three Bridges, New Jersey, US	2	1994–1997