UNIVERSAL LIGHTING TECHNOLOGIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 11830
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 2460
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 1694
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 1686
 
  
 
G05F SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES 1585
 
  
 
H02H EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS 968
 
  
 
F21S NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF 650
 
  
 
H01J ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS 6122
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 6150
 
  
 
H01R ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS 5128

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0027,619 ARCING PROTECTORJul 22, 16Jan 25, 18[H02M, H05B, H02H]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9913335 LED driver circuit with three level step dimming interfaceFeb 02, 17Mar 06, 18[H05B]
9913346 Surge protection system and method for an LED driverAug 11, 16Mar 06, 18[H05B]
9913354 Unpowered tuning interface circuit for an LED driverJun 29, 17Mar 06, 18[H05B]
9894718 Constant current source LED driver circuit with self-clamped outputDec 01, 14Feb 13, 18[H05B]
9842683 Bobbin and E-core assembly configuration and method for E-cores and EI-coresOct 27, 15Dec 12, 17[H01F]
9844118 AC LED driver circuitNov 28, 16Dec 12, 17[H05B]
9835322 Flow through extended surface troffer systemApr 09, 15Dec 05, 17[F21V, F21Y]
9837194 Output transformer and resonant inductor in a combined magnetic structureAug 25, 16Dec 05, 17[H01F]
9837913 Control method to avoid capacitive mode switching for resonant convertersFeb 06, 17Dec 05, 17[H02M, H05B]
9826583 Auxiliary power supply with dynamically adjustable outputOct 20, 16Nov 21, 17[H02M, H05B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7423386 Power supply circuits and methods for supplying stable power to control circuitry in an electronic ballastExpiredDec 02, 04Sep 09, 08[H05B]
7098607 Electronic ballast with lossless snubber capacitor circuitExpiredDec 03, 04Aug 29, 06[H05B]
2005/0168,171 Method for controlling striations in a lamp powered by an electronic ballastAbandonedDec 03, 04Aug 04, 05[H05B]
6813125 Secondary ground fault protected luminous tube transformerExpiredJul 01, 02Nov 02, 04[H02H]
6720741 Electronic ballast having open circuit in outputExpiredFeb 01, 02Apr 13, 04[H05B]
6281641 Electronic ballast for one or more lampsExpiredMay 01, 00Aug 28, 01[G05F]
6274987 Power sensing lamp protection circuit for ballasts driving gas discharge lampsExpiredMay 08, 96Aug 14, 01[H05B]
6225757 Combination MH/HPS ballastExpiredMay 19, 00May 01, 01[H05B]
6204602 Compact fluorescent lamp and ballast assembly with an air gap for thermal isolationExpiredMay 17, 99Mar 20, 01[H01J]
6204613 Protected dimming control interface for an electronic ballastExpiredFeb 18, 00Mar 20, 01[H05B]
6074263 Methods of manufacturing ballasts and starter assemblies used in gas discharge lampsExpiredOct 08, 98Jun 13, 00[H01J]
5852344 Enclosure for glow bulb starter used with gas discharge lampsExpiredJul 26, 96Dec 22, 98[H01J]
5817975 Housing with integral mounting bracketExpiredSep 21, 95Oct 06, 98[H05K]
5818181 Neon lamp isolation transformer for mid-point commoned neon lampsExpiredNov 19, 96Oct 06, 98[H05B]
5788527 Electrical connector with improved safety latching for a fluorescent-lighting ballastExpiredOct 30, 97Aug 04, 98[H01R]
5751523 Secondary ground fault protected luminous tube transformer for mid-point connected luminous tubesExpiredSep 19, 96May 12, 98[H02H]
5735703 Recessed bushing style luminous tube transformer featuring versatile mounting configurationExpiredDec 21, 95Apr 07, 98[H01R]
5463522 Housing and mounting arrangement for thermal protector deviceExpiredJul 27, 93Oct 31, 95[H02H]
5405271 Apparatus and method for improving assembly of leadless ballasts into fluorescent luminairesExpiredSep 28, 93Apr 11, 95[H01R]
5250316 Non-baked cheesecakeExpiredMar 27, 92Oct 05, 93[A23L]

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