Diablo Research Company, LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 292
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 2109
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 1446
 
  
 
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 1101
 
  
 
H03K PULSE TECHNIQUE 1130
 
  
 
H04M TELEPHONIC COMMUNICATION 1162

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6108614 System and method for serial communication between a central unit and a plurality of remote unitsMay 14, 96Aug 22, 00[G08B, G06F]
6087959 Optically coupled gas meterMay 26, 98Jul 11, 00[G08B]
5969561 Integrated circuit having a variable RF resistorMar 05, 98Oct 19, 99[H03K]
5598069 Amalgam system for electrodeless discharge lampNov 15, 95Jan 28, 97[H05B]
5397966 Radio frequency interference reduction arrangements for electrodeless discharge lampsMay 20, 92Mar 14, 95[H05B]
5375051 Apparatus using serial data line to turn on a transceiver or other deviceNov 13, 92Dec 20, 94[H04M, H02M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5962968 Vessel shapes and coil forms for electrodeless discharge lampsExpiredSep 05, 97Oct 05, 99[H01J]
5905344 Discharge lamps and methods for making discharge lampsExpiredJun 05, 96May 18, 99[H01J]
5880464 Optical meter reader using a shadowExpiredJun 09, 97Mar 09, 99[G08S]
5798618 Electrodeless discharge lamp with control amalgam in the plasmaExpiredOct 30, 96Aug 25, 98[H05B]
5734221 Vessel shapes and coil forms for electrodeless discharge lampsExpiredOct 19, 93Mar 31, 98[H01J, H05B]
5581157 Discharge lamps and methods for making discharge lampsExpiredApr 04, 95Dec 03, 96[H01J]
5561351 Dimmer for electrodeless discharge lampExpiredOct 26, 94Oct 01, 96[H05B]
5541482 Electrodeless discharge lamp including impedance matching and filter networkExpiredMay 19, 93Jul 30, 96[H02K]
5525871 Electrodeless discharge lamp containing push-pull class E amplifier and bifilar coilExpiredFeb 03, 95Jun 11, 96[H05B]
5387850 Electrodeless discharge lamp containing push-pull class E amplifierExpiredJun 05, 92Feb 07, 95[H05B]
5349271 Electrodeless discharge lamp with spiral induction coilExpiredMar 24, 93Sep 20, 94[H05B]
5306986 Zero-voltage complementary switching high efficiency class D amplifierExpiredMay 20, 92Apr 26, 94[H05B, H03F]
5258558 Direct conversion of butyraldehyde to 2-ethylhexanol-1ExpiredMay 18, 92Nov 02, 93[C07C]

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