GENE-TRAK SYSTEMS

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5521300 Oligonucleotides complementary to mycobacterial nucleic acidsExpiredAug 13, 91May 28, 96[C07H]
5195825 Device for mixing at least one aqueous fluid substanceExpiredOct 26, 90Mar 23, 93[B04B, B01F]
5141857 Purification of Q Beta replicaseExpiredJun 09, 89Aug 25, 92[C12D]
5112734 Target-dependent synthesis of an artificial gene for the synthesis of a replicatable RNAExpiredMay 26, 89May 12, 92[C07H, C12Q]
5089386 Test for listeriaExpiredSep 11, 87Feb 18, 92[C12Q]
5084565 Probes for the specific detection of Escherichia coli and ShigellaExpiredAug 18, 88Jan 28, 92[C07H, C12Q]
4988618 Magnetic separation device and methods for use in heterogeneous assaysExpiredMay 03, 89Jan 29, 91[G01N]
4983523 Methods for preparing sample nucleic acids for hybridizationExpiredApr 08, 88Jan 08, 91[C12P, C12N]
4847193 Signal amplification in an assay employing a piezoelectric oscillatorExpiredJun 18, 87Jul 11, 89[C12Q]

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