Assignee
WHATMAN INC
US34 patents
Top patents by PatentIndex Score
US6750059B1Jun 15, 2004
Archiving of vectors
WHATMAN INC139 citations96
US6071406AJun 6, 2000
Hydrophilic polymeric phase inversion membrane
WHATMAN INC239 citations96
US6958392B2Oct 25, 2005
Methods for the isolation of nucleic acids and for quantitative DNA extraction and detection for leukocyte evaluation in blood products
WHATMAN INC158 citations94
US5800597ASep 1, 1998
Integral coalescer filter-membrane device to provide a filtered gas stream and system employing such device
WHATMAN INC110 citations94
US7867780B2Jan 11, 2011
Lateral flow format, materials and methods
WHATMAN INC34 citations92
US6869769B2Mar 22, 2005
Methods and materials for detecting genetic material
WHATMAN INC22 citations92
US6083297AJul 4, 2000
Gas dehydration membrane with low oxygen and nitrogen permeability
WHATMAN INC33 citations92
US5853884ADec 29, 1998
Method for producing unsupported fiber bundles for HME and other filtration applications
WHATMAN INC21 citations92
US5368729ANov 29, 1994
Solid phase extraction device
WHATMAN INC99 citations92
US6627226B2Sep 30, 2003
Dry solid medium for storage and analysis of genetic material
WHATMAN INC45 citations91
US6103119AAug 15, 2000
Filter cartridges having track etched membranes and methods of making same
WHATMAN INC59 citations91
US5849249ADec 15, 1998
Solid phase extraction apparatus for enhanced recovery and precision
WHATMAN INC54 citations91
US5840172ANov 24, 1998
Direct current hydrogen generator, system and method
WHATMAN INC62 citations90
US6670128B2Dec 30, 2003
Transfusion medicine leukodepletion filter devices as a source of genetic material for genotyping studies
WHATMAN INC31 citations89
US6126826AOct 3, 2000
PVDF microporous membrane and method
WHATMAN INC37 citations89
US6066264AMay 23, 2000
Method of oil-water separation
WHATMAN INC17 citations89
US5965015AOct 12, 1999
Oil-water separator system with oleophobic fibrous filter
WHATMAN INC29 citations89
US5853586ADec 29, 1998
Thin pliable polymeric film for sealing microplates
WHATMAN INC23 citations89
US5665247ASep 9, 1997
Process for sealing microplates utilizing a thin polymeric film
WHATMAN INC37 citations89
US6746841B1Jun 8, 2004
FTA- coated media for use as a molecular diagnostic tool
WHATMAN INC42 citations88
US6124012ASep 26, 2000
Solid phase extraction disk and apparatus for enhanced recovery and precision
WHATMAN INC17 citations88
US4313906AFeb 2, 1982
Two dimensional two phase thin layer chromatography plate and method
WHATMAN INC57 citations88
US7628917B2Dec 8, 2009
Porous composite membrane and method for making the same
WHATMAN INC33 citations87
US6645717B1Nov 11, 2003
Solid medium and process for the storage and rapid purification of nucleic acid
WHATMAN INC52 citations87
US4175037ANov 20, 1979
Process for packing chromatographic columns
WHATMAN INC49 citations84
US7748283B2Jul 6, 2010
Controlled transfer biological sample collection devices and methods of using such devices
WHATMAN INC12 citations79
US7498133B2Mar 3, 2009
FTA-coated media for use as a molecular diagnostic tool
WHATMAN INC9 citations79
US6881543B2Apr 19, 2005
Sampling and storage system for genetic material from tissue
WHATMAN INC9 citations69
US6972329B2Dec 6, 2005
Materials and methods for releasing genetic material
WHATMAN INC5 citations62
US7244561B2Jul 17, 2007
Inhibiting denaturation of nucleic acid duplexes
WHATMAN INC2 citations55
US7504363B2Mar 17, 2009
Methods using four-layer filter for PCR sample preparation
WHATMAN INC1 citations51
US7833705B2Nov 16, 2010
Archiving of vectors
WHATMAN INC1 citations49
US7501500B2Mar 10, 2009
Inhibiting denaturation of nucleic acid duplexes
WHATMAN INC0 citations48
US7122304B2Oct 17, 2006
Methods for the storage and synthesis of nucleic acids using a solid support
WHATMAN INC1 citations48