Alcatel Sel A.G.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G01S RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES2107
 
  
 
H04B TRANSMISSION 2208
 
  
 
H04Q SELECTING 2108
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204
 
  
 
G06M COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR 113
 
  
 
H01L SEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR 1361
 
  
 
H01Q AERIALS 1109
 
  
 
H04J MULTIPLEX COMMUNICATION 1124
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284
 
  
 
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
5990459 System for controlling a plurality of resistive heating elementsOct 14, 97Nov 23, 99[H05B]
5761199 Method of controlling an exchange, its control facilities, program modules, and switching systemOct 24, 95Jun 02, 98[H04L, H04Q]
5629509 Axle counter with variable threshold settingFeb 17, 95May 13, 97[G06M]
5630209 Emergency call systemJun 03, 94May 13, 97[H04B]
5592469 Radio systemAug 09, 94Jan 07, 97[H04J]
5592535 Mobile-radio network with debit accountsApr 02, 96Jan 07, 97[H04Q]
5490212 Call-routing method for a virtual private network as well as service computer and exchange thereforAug 12, 94Feb 06, 96[H04M]
5475521 Optical communication system with monitoring device for avoiding giant plusesMay 06, 93Dec 12, 95[H04B]
5363109 Method of correcting measurement errors caused by clock deviations in a secondary radar systemJul 23, 93Nov 08, 94[G01S]
5337059 Apparatus and method for determining the aperture illumination of a phased-array antennaAug 23, 93Aug 09, 94[H01Q]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5933845 Flash memory management method including shifting or copying data to other blocks to optimize storage space and allow entire blocks to be erasedExpiredSep 29, 95Aug 03, 99[G06F, G11C]
5852735 Method and apparatus for exchanging a program over a network computer system that permits reactivation of the original program if an error occursExpiredAug 23, 95Dec 22, 98[G06F]
5784450 Method of establishing a connection to a subscriber through a first network, as well as service computer, switching facility, and terminalExpiredApr 06, 95Jul 21, 98[H04M]
5781597 Synchronous digital transmission system having justification circuit that counts frame bytes, calculates offsets, compares thresholds, and initiates justification actionExpiredFeb 16, 95Jul 14, 98[H04L, H04J]
5719874 Time-division-multiplexing method and apparatusExpiredOct 19, 95Feb 17, 98[H04J]
5663988 Method and circuit arrangement for offset correction in a TDMA radio receiverExpiredJan 14, 93Sep 02, 97[H04L]
5629925 Method of operating a switching network, as well as switching network and exchange thereforExpiredApr 27, 95May 13, 97[H04G, H04J]
5621895 Frame-structured bus system for transmitting both synchronous and asynchronous data over a star-coupled local operation networkExpiredDec 04, 95Apr 15, 97[G06F]
5616965 Electro-pneumatic busExpiredMay 24, 95Apr 01, 97[F17D, B60L]
5577101 Telepoint system which charges an account of the subscriber rather charging an account of the private base station through a call is establishedExpiredApr 10, 96Nov 19, 96[H04Q]
5577198 Test method as well as a converter, a test set, and a test-program module thereforExpiredJul 26, 95Nov 19, 96[G06F]
5561853 Method and apparatus for determining the assignment of a mobile station to equipment listsExpiredOct 26, 94Oct 01, 96[H04B]
5519696 Method of and facility for randomly selecting one out of N nodes, as well as a switching element, a switching network, and an exchange therewithExpiredDec 21, 94May 21, 96[H04L, H04Q]
5517232 Cable television distribution network with video-on-demand transmissionExpiredJul 07, 94May 14, 96[H04N]
5502586 Optical network including branch points featuring three interconnected bidirectional optical waveguides having free ends with reflectionless terminationsExpiredJun 03, 94Mar 26, 96[H04B, H04J]
5500755 Compensation deviceExpiredApr 18, 94Mar 19, 96[H04B]
5483578 Method of managing a speech memory, and assembly thereforExpiredSep 30, 94Jan 09, 96[H04M]
D365560 Telephone setExpiredNov 29, 94Dec 26, 95[]
5377284 Interferometric optical switchExpiredNov 03, 93Dec 27, 94[G02B]
5297154 Fiber-optic amplifier with feedback-insensitive pump laserExpiredApr 30, 93Mar 22, 94[G02B, H01S]

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