VALMONT ELECTRIC, 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 1110

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
RE31970 High efficiency ballast system for gaseous discharge lampsNov 08, 82Aug 13, 85[H05B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5120486 Method of molding a bobbin for a ballastExpiredFeb 27, 89Jun 09, 92[B29C]
5068639 Wall box dimmerExpiredJun 25, 90Nov 26, 91[H01C]
5023520 Ballast connectorExpiredJul 06, 90Jun 11, 91[H05K]
5021714 Circuit for starting and operating fluorescent lampsExpiredMay 10, 90Jun 04, 91[H05B]
4969070 Fluorescent fixture housingExpiredJul 17, 89Nov 06, 90[F21V, F21S]
4916363 BallastExpiredOct 14, 88Apr 10, 90[H05K]
4644227 Three lamp ballastExpiredDec 20, 84Feb 17, 87[H05B]
4574222 Ballast circuit for multiple parallel negative impedance loadsExpiredDec 27, 83Mar 04, 86[H05B]
4562381 Starting circuit for multiple fluorescent lampsExpiredSep 13, 84Dec 31, 85[H05B]
4346332 Frequency shift inverter for variable power controlExpiredAug 14, 80Aug 24, 82[H05B]
4282038 Coil impregnant with modified asphaltite baseExpiredOct 18, 76Aug 04, 81[C08L]
4204417 Apparatus and method for winding electrical coilsExpiredSep 25, 78May 27, 80[B21F]
4185233 High efficiency ballast system for gaseous discharge lampsExpiredMar 30, 78Jan 22, 80[H05B]

Top Inventors for This Owner

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