HOLLANDSE SIGNAALAPPARATEN B.V.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H03K PULSE TECHNIQUE 1130

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D406777 Radar or search/tracking system consoleSep 10, 97Mar 16, 99[1004]
5223749 Charging circuitSep 17, 91Jun 29, 93[H03K]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5629516 Optical scanning apparatus with the rotation of array into two directionsExpiredJan 28, 94May 13, 97[H04N, G01B]
5187488 Tunable high-frequency antennaExpiredNov 14, 90Feb 16, 93[H01Q]
5170112 Power supply device for supplying power to a filament of a radar transmitterExpiredSep 11, 91Dec 08, 92[H05B]
5159295 Microwave vector modulator and device for matching a microwave loadExpiredJun 13, 91Oct 27, 92[H03H]
5063389 Antenna system with adjustable beam width and beam orientationExpiredSep 13, 90Nov 05, 91[H01Q]
5055848 Radar apparatus for the detection of helicoptersExpiredFeb 19, 91Oct 08, 91[G01S]
4932025 Method of information transfer as well as an arrangement for implementing the methodExpiredOct 26, 88Jun 05, 90[H04J]
4872200 System of orthogonal code generators, radios provided with a code generator and code generators of such a systemExpiredApr 15, 88Oct 03, 89[H04L]
4837823 Communication systemExpiredMar 04, 87Jun 06, 89[H01I]
4805169 Local area network operating on the multiple bus systemExpiredFeb 07, 86Feb 14, 89[H04J]
4786913 Universal waveguide joint, flexible coupler, and arrangement for a surveillance radar antennaExpiredApr 18, 86Nov 22, 88[H01Q]
4777576 Energy converter with series resonant bridge and switching circuitExpiredJun 29, 87Oct 11, 88[H02M]
4750689 System for determining the angular spin position of an object spinning about an axisExpiredMar 17, 87Jun 14, 88[F41G]
4710773 Data converter for a pulse radar apparatusExpiredMar 06, 87Dec 01, 87[G01S]
4679050 Pulse radar apparatusExpiredNov 25, 85Jul 07, 87[G01J]
4673941 Digital pulse compression filterExpiredNov 19, 84Jun 16, 87[G01S, H03H]
4663631 Apparatus for maintaining the orientation of an antenna system with respect to a beaconExpiredAug 26, 85May 05, 87[G01S]
4649395 Pulse radar apparatusExpiredApr 18, 84Mar 10, 87[G01S]
4608701 Communication receiving unit for the suppression of noise and interference signalsExpiredSep 19, 84Aug 26, 86[H04B, H04K]
4586042 Video extractorExpiredMar 11, 83Apr 29, 86[G01S]

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