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UNITRODE CORPORATION
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WATERTOWN, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method for sensing the output voltage of a charge pump circuit with...
Patent number
6,344,959
Issue date
Feb 5, 2002
Unitrode Corporation
Ciro W. Milazzo
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Adaptive leading edge blanking circuit to eliminate spike on power...
Patent number
6,144,245
Issue date
Nov 7, 2000
Unitrode Corporation
Laszlo Balogh
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Multi-cell battery pack charge balancing circuit
Patent number
6,114,835
Issue date
Sep 5, 2000
Unitrode Corporation
Burt L. Price
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Telephone line ring signal and DC power generator
Patent number
6,115,469
Issue date
Sep 5, 2000
Unitrode Corporation
Dhaval Dalal
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Induction motor controller
Patent number
5,969,498
Issue date
Oct 19, 1999
Unitrode Corporation
Philip Cooke
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Brushless DC motor controller
Patent number
5,929,577
Issue date
Jul 27, 1999
Unitrode Corporation
Robert A. Neidorff
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
DC motor driver having output FETS that conduct to rectify output o...
Patent number
5,886,487
Issue date
Mar 23, 1999
Unitrode Corporation
Joseph M. Khayat
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Controller for isolated boost converter with improved detection of...
Patent number
5,847,942
Issue date
Dec 8, 1998
Unitrode Corporation
John P. Bazinet
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Bandgap voltage reference based temperature compensation circuit
Patent number
5,767,664
Issue date
Jun 16, 1998
Unitrode Corporation
Burt L. Price
G05 - CONTROLLING REGULATING
Information
Patent Grant
Multiplexing power converter
Patent number
5,751,139
Issue date
May 12, 1998
Unitrode Corporation
Mark George Jordan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Power supply controller having frequency foldback and volt-second d...
Patent number
5,710,697
Issue date
Jan 20, 1998
Unitrode Corporation
Philip R. Cooke
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Controller having feed-forward and synchronization features
Patent number
5,691,889
Issue date
Nov 25, 1997
Unitrode Corporation
John P. Bazinet
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Apparatus and method for generating a low frequency AC signal
Patent number
5,663,878
Issue date
Sep 2, 1997
Unitrode Corporation
Jimmy Aubrey Walker
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Voltage sensor for detecting cell voltages
Patent number
5,652,501
Issue date
Jul 29, 1997
Unitrode Corporation
Winthrop H. McClure
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Digital to analog converter
Patent number
5,648,780
Issue date
Jul 15, 1997
Unitrode Corporation
Robert Alan Neidorff
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
DC/DC converter having a bootstrapped high side driver
Patent number
5,627,460
Issue date
May 6, 1997
Unitrode Corporation
John P. Bazinet
G05 - CONTROLLING REGULATING
Information
Patent Grant
Impedance emulator
Patent number
5,585,741
Issue date
Dec 17, 1996
Unitrode Corporation
Mark Jordan
G05 - CONTROLLING REGULATING
Information
Patent Grant
Electronic circuit breaker
Patent number
5,581,433
Issue date
Dec 3, 1996
Unitrode Corporation
Mark G. Jordan
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Battery protector
Patent number
5,581,170
Issue date
Dec 3, 1996
Unitrode Corporation
Robert A. Mammano
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Digital to analog coverter having multiple resistor ladder stages
Patent number
5,554,986
Issue date
Sep 10, 1996
Unitrode Corporation
Robert A. Neidorff
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Off-line controller having a line voltage detector and a switched c...
Patent number
5,532,626
Issue date
Jul 2, 1996
Unitrode Corporation
Joseph M. Khayat
G01 - MEASURING TESTING
Information
Patent Grant
Controllable bus terminator
Patent number
5,521,528
Issue date
May 28, 1996
Unitrode Corporation
Robert A. Mammano
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Battery charger circuit including battery temperature control
Patent number
5,504,416
Issue date
Apr 2, 1996
Unitrode Corporation
Peter R. Holloway
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Programmable and stable threshold CMOS inverter
Patent number
5,493,235
Issue date
Feb 20, 1996
Unitrode Corporation
Joseph M. Khayat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Low current bandgap reference voltage circuit
Patent number
5,451,860
Issue date
Sep 19, 1995
Unitrode Corporation
Joseph M. Khayat
G05 - CONTROLLING REGULATING
Information
Patent Grant
Switching regulator with improved Dynamic response
Patent number
5,422,562
Issue date
Jun 6, 1995
Unitrode Corporation
Robert A. Mammano
G05 - CONTROLLING REGULATING
Information
Patent Grant
Inverted epitaxial process semiconductor devices
Patent number
5,416,354
Issue date
May 16, 1995
Unitrode Corporation
Scott C. Blackstone
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Voltage mode pulse width modulation controller
Patent number
5,414,342
Issue date
May 9, 1995
Unitrode Corporation
Robert A. Mammano
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Current source bus terminator with voltage clamping and steady stat...
Patent number
5,414,583
Issue date
May 9, 1995
Unitrode Corporation
Mark Jordan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Push-pull amplifier
Patent number
5,361,041
Issue date
Nov 1, 1994
Unitrode Corporation
Charles A. Lish
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Trademark
last 30 trademarks
Information
Trademark
75447980 - UTR BENCHMARQ
Serial number
75447980
Filing date
Mar 10, 1998
Unitrode Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75447653 - UTR
Serial number
75447653
Filing date
Mar 10, 1998
Unitrode Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
75319277 - HOT SWAP POWER MANAGER
Serial number
75319277
Filing date
Jul 3, 1997
Unitrode Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
74198676 - POWERMITE
Serial number
74198676
Registration number
1796829
Filing date
Aug 26, 1991
Unitrode Corporation
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73549603 - BISYN
Serial number
73549603
Registration number
1404687
Filing date
Jul 19, 1985
UNITRODE CORPORATION
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
73073017 - CHIPSTRATE
Serial number
73073017
Registration number
1045840
Filing date
Dec 29, 1975
UNITRODE CORPORATION
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72288389 - DOOR BELL
Serial number
72288389
Registration number
858221
Filing date
Jan 8, 1968
UNITRODE CORPORATION
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
Information
Trademark
72251971 - U
Serial number
72251971
Registration number
840355
Filing date
Aug 8, 1966
UNITRODE CORPORATION
9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments