ALLTECH ASSOCIATES, INC.

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Patent Activity in the Last 10 Years

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7008532 Chromatographic device having an elongate rod and method of forming and chromatographic deviceApr 12, 02Mar 07, 06[B01D]
6036855 Method and apparatus for packing and sealing chromatographic columnsSep 15, 97Mar 14, 00[B01D]
5951873 Chromatographic device with piston locking mechanism and method of packing sameDec 23, 97Sep 14, 99[B01D]
5893971 Apparatus that maintains compression in a tubeOct 01, 97Apr 13, 99[B01D]
5866008 Method for packing and sealing chromatographic columnsOct 01, 97Feb 02, 99[B01D]
5192433 Slurry compressor, apparatus for guiding compresser, and method for packing slurry in columnApr 17, 92Mar 09, 93[B01D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8470173 Column packing apparatus and method of making and using the sameExpiredFeb 19, 09Jun 25, 13[B01D]
2006/0049,090 Chromatographic device and method of forming a chromatographic deviceAbandonedJul 13, 05Mar 09, 06[B01D]
7006218 Low temperature adaptor for evaporative light detectionExpiredSep 07, 99Feb 28, 06[G01N]
6932904 Chromatographic device and method of forming a chromatographic deviceExpiredApr 02, 02Aug 23, 05[B01D]
6362880 Low temperature adaptor for evaporative light detectionExpiredSep 17, 97Mar 26, 02[G01N]
5227059 Chromatography columnsExpiredNov 07, 90Jul 13, 93[B01D]
5169522 Column slurry packing compressorExpiredSep 25, 90Dec 08, 92[B01D]
5114976 Method for treating certain psychiatric disorders and certain psychiatric symptomsExpiredNov 05, 90May 19, 92[A61K]
5062310 Probe inlet apparatus and methodExpiredMar 01, 90Nov 05, 91[G01M]
5013433 Zero void column end plate for chromatographyExpiredOct 10, 89May 07, 91[B01D]
4882047 Zero-void column end plate for chromatographyExpiredMar 27, 89Nov 21, 89[B01D]
4690437 Low pressure fittingExpiredFeb 27, 86Sep 01, 87[F16L]
RE32482 Connector for liquid chromatography devicesExpiredSep 15, 86Aug 25, 87[F16L]
4586732 Connector for liquid chromatography devicesExpiredFeb 17, 84May 06, 86[F16L]
4586733 Adapter coupling for liquid chromatography deviceExpiredFeb 17, 84May 06, 86[F16L]

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