Staat der Nederlanden (Staatsbedrijf der Posterijen, Telegrafie en Telefonie)

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C12Q MEASURING OR TESTING PROCESSES INVOLVING ENZYMES OR MICRO-ORGANISMS 1124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5529901 Method for determining the presence or amount of analyte using a stable colloidal carbon solMay 12, 94Jun 25, 96[C12Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4951934 Device for stacking sheet-like articles such as lettersExpiredNov 16, 88Aug 28, 90[B65H]
4946262 Method and device for controlling a beam of lightExpiredNov 17, 88Aug 07, 90[G02F]
4934662 Device for introducing a cable into a cable guide tubeExpiredApr 14, 89Jun 19, 90[B66F]
4918747 Method and device for compensating, in a coherent optical communication system with heterodyne detection, at the receiving side, phase noise of a transmitting laser and of a local laserExpiredDec 23, 88Apr 17, 90[H04B]
D305188 TableExpiredNov 07, 88Dec 26, 89[]
4867516 Electro-optically induced optical waveguide, and active devices comprising such a waveguideExpiredSep 15, 88Sep 19, 89[G02B]
4850569 Method for introducing a cable into a cable guide tubeExpiredApr 20, 88Jul 25, 89[B66F]
4785942 Switch provided with one or more vanes and used for a sorting deviceExpiredApr 15, 86Nov 22, 88[B07C]
4749931 Coil current control deviceExpiredApr 01, 87Jun 07, 88[H02P]
4748534 Device for establishing between conductors a galvanic connection, which is blocked for the transmission of electromagnetic radiationExpiredJan 30, 87May 31, 88[H01C, H02H]
4718058 Digital switching network for switching signals of different bit ratesExpiredFeb 15, 85Jan 05, 88[H04Q]
4691586 Fine-adjusting device for accurate positioning an adjusting elementExpiredMar 04, 86Sep 08, 87[G05G]
4687106 Letter-mail checking deviceExpiredApr 27, 86Aug 18, 87[B07C]
4669117 Video terminal with image line disarrangementExpiredJun 17, 85May 26, 87[H04N]
4645923 Method and device for coupling an optical signal from a first light guide into a second light guideExpiredOct 05, 84Feb 24, 87[H01J, G02B]
4644333 Gas sensor and detection system comprising such a sensorExpiredOct 04, 84Feb 17, 87[G08B]
4596443 Light guide for liquid detection and cable comprising such a guideExpiredApr 18, 85Jun 24, 86[G02B]
4479188 Digital detector for a multi-frequency code in an analog signalExpiredAug 25, 82Oct 23, 84[G06F, G01S]
4468323 Method and apparatus for cleaning up surface waterExpiredFeb 11, 82Aug 28, 84[E02B]
4466121 Method and device for character segmentationExpiredNov 09, 81Aug 14, 84[G06K]

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