TELEFUNKEN ELECTRONIC GMBH

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H05K PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS 3153
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 2360
 
  
 
F02P IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES 138
 
  
 
H03F AMPLIFIERS 182
 
  
 
H04B TRANSMISSION 1209

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5311398 Housing for motor vehicle electronic systemOct 28, 92May 10, 94[H05K]
5257288 Data transmission systemApr 09, 91Oct 26, 93[H04B]
5254484 Method for recrystallization of preamorphized semiconductor surfaces zonesSep 24, 91Oct 19, 93[H01L]
5250466 Method for manufacturing ohmic contacts for compound semiconductorsApr 10, 92Oct 05, 93[H01L]
5245509 Printed circuit board arrangement with surface-mounted connector strip and a method for manufacturing the arrangementAug 14, 92Sep 14, 93[H05K]
5220903 Electronic ignition systemOct 28, 91Jun 22, 93[F02P]
5202646 Output stage for amplifiersOct 23, 91Apr 13, 93[H03F]
5159532 Electronic control unit with multiple hybrid circuit assemblies integrated on a single common ceramic carrierMay 28, 91Oct 27, 92[H05K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5235288 Amplifier stage for low-resistance AC voltage sourcesExpiredFeb 06, 92Aug 10, 93[H03F]
5225669 Sensor system with adjustment for ambient conditionsExpiredOct 08, 91Jul 06, 93[H01J]
5220607 Digital switching signal in stereo decoders and circuit array for generation thereofExpiredDec 12, 91Jun 15, 93[H04H]
5208728 Housing for fitting in motor vehicles to hold electronic componentsExpiredMar 26, 92May 04, 93[H02B]
5203019 Radio receiver with improved automatic gain controlExpiredDec 13, 90Apr 13, 93[H04B]
5194922 Luminescent semiconductor elementExpiredMar 28, 91Mar 16, 93[H01L]
5181084 Infrared light emitting diode with gradingExpiredSep 05, 91Jan 19, 93[H01L]
5124575 Circuit array for setting the operating point of a transistorExpiredMar 16, 89Jun 23, 92[H03K, H03F]
5122878 Television tuner and circuitry for switching between two frequency rangesExpiredJun 20, 89Jun 16, 92[H04N, H04B]
5096844 Method for manufacturing bipolar transistor by selective epitaxial growth of base and emitter layersExpiredAug 24, 89Mar 17, 92[H01L]
5094983 Method for manufacture of an integrated MOS semiconductor arrayExpiredOct 09, 90Mar 10, 92[H01L]
5084804 Wide-area lampExpiredOct 13, 89Jan 28, 92[B60Q]
5082339 Optical read-write head with diffraction grating structureExpiredJul 10, 89Jan 21, 92[G02B, G11B]
5077831 Safeguard device with coded transmitted signalExpiredSep 25, 89Dec 31, 91[H04Q, H04B]
5075822 Housing for installation in motor vehiclesExpiredFeb 01, 90Dec 24, 91[H05K]
5071259 Sensor for measuring the pressure and temperature of tiresExpiredJan 29, 90Dec 10, 91[G01K, B60C]
5067076 Circuit arrangement for serial data transferExpiredApr 15, 91Nov 19, 91[H04J]
5053352 Method of forming an integrated circuit with pn-junction capacitorExpiredDec 08, 89Oct 01, 91[H01L]
5053923 Electronic control unit with common ground connection to a heat sinkExpiredNov 09, 89Oct 01, 91[H05K]
5036233 Integrated semiconductor circuit having a unidirectional semiconductor component for preventing saturation of bipolar transistorsExpiredJul 14, 89Jul 30, 91[H03K]

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