ALLEGRO MICROSYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
G01R MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES 4156
 
 
 
G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS393
 
 
 
G01P MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT 348
 
 
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 386
 
 
 
H03K PULSE TECHNIQUE 3126
 
 
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 292
 
 
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 2102
 
 
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 2148
 
 
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1112
 
 
 
G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 157

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9644999 Magnetic field sensor and associated method that can establish a measured threshold value and that can store the measured threshold value in a memory deviceApr 11, 14May 09, 17[G01D, G01P, G01B]
9337727 Circuitry to control a switching regulatorJan 06, 14May 10, 16[H05B, G05F, H02M]
9320094 Electronic circuits for driving series connected light emitting diode stringsMar 04, 15Apr 19, 16[H05B, G09G]
9151771 Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic objectDec 02, 13Oct 06, 15[G01R, G01P, G01B]
9151807 Circuits and methods for generating a self-test of a magnetic field sensorJul 01, 14Oct 06, 15[G01R]
9007000 Electronic circuits for driving series connected light emitting diode stringsJan 07, 14Apr 14, 15[H05B]
8994369 Apparatus and method for providing an output signal indicative of a speed of rotation and a direction of rotation of a ferromagnetic objectDec 02, 13Mar 31, 15[G01R, G01P, G01B]
7859835 Method and apparatus for thermal management of a radio frequency systemJun 10, 09Dec 28, 10[H05K]
6334158 User-interactive system and method for integrating applicationsNov 29, 96Dec 25, 01[G06F]
5331218 Switched-capacitor notch filter with programmable notch width and depthJul 13, 92Jul 19, 94[H03K]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2010/0156,397 METHODS AND APPARATUS FOR AN ANGLE SENSOR FOR A THROUGH SHAFTABANDec 23, 08Jun 24, 10[G01B]
2008/0036,453 VEHICLE HAVING A SENSOR WITH CAPACITOR ON CHIPABANOct 23, 07Feb 14, 08[G01B]
2008/0013,298 METHODS AND APPARATUS FOR PASSIVE ATTACHMENT OF COMPONENTS FOR INTEGRATED CIRCUITSABANJul 14, 06Jan 17, 08[H05K]
2007/0279,053 INTEGRATED CURRENT SENSORABANJul 11, 07Dec 06, 07[G01R]
2006/0219,436 CURRENT SENSORABANMay 12, 06Oct 05, 06[H01L]
2005/0225,318 Methods and apparatus for vibration detectionABANApr 08, 04Oct 13, 05[G01R, G01B]
5963028 Package for a magnetic field sensing deviceExpiredAug 19, 97Oct 05, 99[G01R, G01P, H01L]
5387821 Power distribution circuit with power factor correction and independent harmonic current filterExpiredNov 12, 92Feb 07, 95[H02J]
5202924 Stereo FM radio receiver with variable band pass stereo decoderExpiredDec 22, 89Apr 13, 93[H04H]
5139973 Method for making a semiconductor package with the distance between a lead frame die pad and heat spreader determined by the thickness of an intermediary insulating sheetExpiredDec 17, 90Aug 18, 92[H01L]
5075568 Switching bipolar driver circuit for inductive loadExpiredJan 22, 91Dec 24, 91[H03K]
5053947 Extended multistation bus system and methodExpiredSep 29, 89Oct 01, 91[G06F]
5045492 Method of making integrated circuit with high current transistor and CMOS transistorsExpiredSep 25, 89Sep 03, 91[H01L]
5045920 Dual-Hall ferrous-article-proximity sensorExpiredJun 28, 90Sep 03, 91[H01L]
5027402 Blend-on-noise stereo decoderExpiredDec 22, 89Jun 25, 91[H04H]
5012322 Semiconductor die and mounting assemblyExpiredMay 18, 87Apr 30, 91[H01L]
5001073 Method for making bipolar/CMOS IC with isolated vertical PNPExpiredJul 16, 90Mar 19, 91[H01L]
5001757 FM stereo tone detectorExpiredDec 22, 89Mar 19, 91[H04H]
4982155 Hall sensor with high pass hall voltage filterExpiredJun 29, 89Jan 01, 91[G01R, H01L]
4935698 Sensor having dual Hall IC, pole piece and magnetExpiredMar 03, 89Jun 19, 90[G01B, H01L]

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