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Class Information
Number: 210/198.3
Name: Liquid purification or separation > With means to add treating material > Chromatography > Thin layer, e.g., plate, etc.
Description: Apparatus under subclass under 198.2 utilizing an absorbent cake spread on usually a smooth plate to a depth of about 0.5 mm.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8702984 Thin layer chromatography plates and related methods of manufacture including priming prior to infiltration with stationary phase and/or precursor thereof Apr. 22, 2014
8685259 Fluid distribution and collection system in a multistage column comprising a jet breaker Apr. 1, 2014
8568587 Electro-spun fibers and applications therefore Oct. 29, 2013
8506802 Stackable planar adsorptive devices Aug. 13, 2013
8349182 Fluid distribution and collection system in a multistage column comprising a jet breaker Jan. 8, 2013
8323488 IC-processed polymer nano-liquid chromatoraphy system on-a-chip and method of making it Dec. 4, 2012
7892847 Method and apparatus for countercurrent chromatography Feb. 22, 2011
7837873 Method and apparatus for producing purified botanical oil Nov. 23, 2010
7828966 Method for purification of botanical oil without producing any trans fatty acid as by-product and apparatus for the method Nov. 9, 2010
7540184 Analyzing method for coloring material composition Jun. 2, 2009
7279105 Arrangement and method for performing chromatography Oct. 9, 2007
7208085 Caky chromatographic column and the method for producing it and its applications Apr. 24, 2007
6884346 Bonded phase photopolymerized sol-gel column and associated methods Apr. 26, 2005
6875348 Separation column having a photopolymerized sol-gel component and associated methods Apr. 5, 2005
6866785 Photopolymerized sol-gel column and associated methods Mar. 15, 2005
6783988 Methods for quantitative and qualitative analyses of phospholipids using one-dimensional thin layer chromatography Aug. 31, 2004
6712972 Method for the synthesis and evaluation of porphyrins, calix (4) pyrroles and allied macrocycles Mar. 30, 2004
6709584 Device for analyzing substances by means of thin layer chromatography Mar. 23, 2004
6610202 Arrangement and method for performing chromatography Aug. 26, 2003
6497842 Quantitative chromatographic measuring device and method for manufacturing the same Dec. 24, 2002
6465225 Method and device for manipulating particles in microsystems Oct. 15, 2002
6454939 Illumination box and camera system Sep. 24, 2002
6395178 Thin porous layers for thin-layer chromatography May. 28, 2002
6331254 Methods of separation and detection Dec. 18, 2001
6303029 Arrangement and method for performing chromatography Oct. 16, 2001
6264893 Method and apparatus for developing thin layer chromatography plates for maximizing mobile phase conditions in column chromatography Jul. 24, 2001
6238928 Analytical process for testing mixtures for toxic constituents May. 29, 2001
6156431 Extraction material comprising treated silica and method for determination of gamma-hydroxybutyrate Dec. 5, 2000
6096205 Hand portable thin-layer chromatography system Aug. 1, 2000
6019896 Method for using a quality metric to assess the quality of biochemical separations Feb. 1, 2000
5882939 Separating materials for linking TLC and FTIR Mar. 16, 1999
5773576 Coded thin layer chromatography support Jun. 30, 1998
5762877 Chemical sample concentrating device Jun. 9, 1998
5728301 Apparatus and method for thin layer chromatography Mar. 17, 1998
5683916 Membrane affinity apparatus and purification methods related thereto Nov. 4, 1997
5643447 Thin layer chromatographic plates Jul. 1, 1997
5635060 Composite membranes for solid phase extractions and reactions Jun. 3, 1997
5538634 Solid phase extraction filtration disk and method for its manufacture Jul. 23, 1996
5538634 Solid phase extraction filtration disk and method for its manufacture Jul. 23, 1996
5529686 Composite membranes for solid phase extractions and reactions Jun. 25, 1996
5482677 Thermally desorbable passive dosimeter Jan. 9, 1996
5350510 Apparatus for thin layer chromatography Sep. 27, 1994
5340746 Composite reactive articles for the determination of cyanide Aug. 23, 1994
5320811 Thin layer chromatography direct sample application manifold Jun. 14, 1994
5306645 Concentration and transfer methods for a chromatogram and an LC/IR measuring method Apr. 26, 1994
5238621 Method of controlling porosity in a composite article Aug. 24, 1993
5171528 Device for differentiating the source of occult gastro-intestinal bleeding Dec. 15, 1992
5165292 Channel Device and tube connection and their fabrication procedures Nov. 24, 1992
5162155 Silane coated inorganic materials for chromatography Nov. 10, 1992
5147539 Controlled pore composite polytetrafluoroethylene article Sep. 15, 1992

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