Assignee
SIGMA ALDRICH CO
US·61 granted patents·78 pending applications·2,537 citations·filing 1995–2011
Top patents by PatentIndex Score
139 records- 0199US5868361ASupport system having an interchangeable spliceSIGMA ALDRICH CO·Filed 1997·Granted Feb 9, 1999·1k cites·16 claims
- 0298US5961081ACable support having pivotally and slidable retainerSIGMA ALDRICH CO·Filed 1997·Granted Oct 5, 1999·139 cites·15 claims
- 0395US6065612ARelay rack with two-way opening door frameSIGMA ALDRICH CO·Filed 1999·Granted May 23, 2000·125 cites·14 claims
- 0493US7972828B2Stabilized compositions of thermostable DNA polymerase and anionic or zwitterionic detergentSIGMA ALDRICH CO·Filed 2006·Granted Jul 5, 2011·90 cites·14 claims
- 0593US7897376B2Method for extracting a target product from a host cell employing zwitterionic detergent combinationsSIGMA ALDRICH CO·Filed 2007·Granted Mar 1, 2011·40 cites·28 claims
- 0693US7419698B2Precursors for chemical vapor depositionSIGMA ALDRICH CO·Filed 2002·Granted Sep 2, 2008·38 cites·19 claims
- 0792US7427678B2Method for immobilizing oligonucleotides employing the cycloaddition bioconjugation methodSIGMA ALDRICH CO·Filed 2001·Granted Sep 23, 2008·247 cites·20 claims
- 0892US6204405B1Economical and convenient procedures for the synthesis of catecholboraneSIGMA ALDRICH CO·Filed 1999·Granted Mar 20, 2001·54 cites·8 claims
- 0991US5792993AWireway sealing deviceSIGMA ALDRICH CO·Filed 1997·Granted Aug 11, 1998·75 cites·26 claims
- 1090US7282475B2Compositions and methods employing zwitterionic detergent combinationsSIGMA ALDRICH CO·Filed 2005·Granted Oct 16, 2007·19 cites·50 claims
- 1190US7169584B2Tracer reagents that enhance reaction-product analysisSIGMA ALDRICH CO·Filed 2005·Granted Jan 30, 2007·21 cites·21 claims
- 1290US6623655B1Metal chelating compositionsSIGMA ALDRICH CO·Filed 2000·Granted Sep 23, 2003·28 cites·95 claims
- 1390US5819956ARack for electrical equipmentSIGMA ALDRICH CO·Filed 1997·Granted Oct 13, 1998·79 cites·39 claims
- 1489US7317070B1Process for the preparation of polyamino acidsSIGMA ALDRICH CO·Filed 2005·Granted Jan 8, 2008·20 cites·32 claims
- 1589US7214484B2Compositions and methods for nucleic acid extraction from biological samplesSIGMA ALDRICH CO·Filed 2002·Granted May 8, 2007·32 cites·11 claims
- 1687US7750168B2Stabilized deuteroborane-tetrahydrofuran complexSIGMA ALDRICH CO·Filed 2007·Granted Jul 6, 2010·11 cites·25 claims
- 1786US6942964B1Tracer reagents that enhance reaction-product analysisSIGMA ALDRICH CO·Filed 2000·Granted Sep 13, 2005·28 cites·41 claims
- 1885US5720567ACable tray systemSIGMA ALDRICH CO·Filed 1996·Granted Feb 24, 1998·46 cites·6 claims
- 1983US7875738B2Polysilazane thermosetting polymers for use in chromatographic systems and applicationsSIGMA ALDRICH CO·Filed 2008·Granted Jan 25, 2011·5 cites·15 claims
- 2083US7531308B2Process for the reduction of endotoxins in a plasmid preparation using a carbohydrate non-ionic detergent with silica chromatographySIGMA ALDRICH CO·Filed 2005·Granted May 12, 2009·7 cites·16 claims
- 2182US7282119B2Process and apparatus for the isolation of pure, or substantially pure, organometallic compoundsSIGMA ALDRICH CO·Filed 2001·Granted Oct 16, 2007·19 cites·18 claims
- 2281US7776582B2Optically enhanced chiral ionic liquidsSIGMA ALDRICH CO·Filed 2008·Granted Aug 17, 2010·3 cites·10 claims
- 2379US6825032B2High capacity assay platformsSIGMA ALDRICH CO·Filed 2001·Granted Nov 30, 2004·14 cites·60 claims
- 2478US7815864B2Polysilazane thermosetting polymers for use in chromatographic systems and applicationsSIGMA ALDRICH CO·Filed 2004·Granted Oct 19, 2010·15 cites·18 claims
- 2578US7094548B2Purification of recombinant proteins fused to multiple epitopesSIGMA ALDRICH CO·Filed 2001·Granted Aug 22, 2006·7 cites·29 claims
- 2677US7897758B2Activators for oligonucleotide and phosphoramidite synthesisSIGMA ALDRICH CO·Filed 2006·Granted Mar 1, 2011·3 cites·16 claims
- 2776USRE36681EChannel nut fastenerSIGMA ALDRICH CO·Filed 1997·Granted May 2, 2000·45 cites·33 claims
- 2875US5848770AClevis hangerSIGMA ALDRICH CO·Filed 1997·Granted Dec 15, 1998·41 cites·29 claims
- 2973US7927661B2Methods of depositing a metal oxide layer or film using a rare earth metal precursorSIGMA ALDRICH CO·Filed 2004·Granted Apr 19, 2011·11 cites·21 claims
- 3073US7767833B2Stabilized borane-tetrahydrofuran complexSIGMA ALDRICH CO·Filed 2005·Granted Aug 3, 2010·3 cites·24 claims
- 3173US7163633B2Affinity matrices with enhanced visibility for molecular pull-down and immunoprecipitation applicationsSIGMA ALDRICH CO·Filed 2004·Granted Jan 16, 2007·2 cites·19 claims
- 3272US5816542ASupport system for data transmission linesSIGMA ALDRICH CO·Filed 1995·Granted Oct 6, 1998·21 cites·19 claims
- 3371US6887377B2Affinity matrices with enhanced visibility for molecular pull-down and immunoprecipitation applicationsSIGMA ALDRICH CO·Filed 2002·Granted May 3, 2005·9 cites·76 claims
- 3470US6194394B1Coagulation controls for prothrombin time (PT) and activated partial thromboplastin time (APTT) assaysSIGMA ALDRICH CO·Filed 1998·Granted Feb 27, 2001·30 cites·57 claims
- 3569US7294719B2Synthesis of amino acid, N-carboxyanhydridesSIGMA ALDRICH CO·Filed 2005·Granted Nov 13, 2007·3 cites·30 claims
- 3669US7033520B2Metal chelating compositions for protein purification, detection or bindingSIGMA ALDRICH CO·Filed 2003·Granted Apr 25, 2006·7 cites·23 claims
- 3769US5924655AClevis hangerSIGMA ALDRICH CO·Filed 1998·Granted Jul 20, 1999·28 cites·5 claims
- 3869US2009263871A1Methods and Compositions for Amplification of DNASIGMA ALDRICH CO·Filed 2009·Application pending·0 cites
- 3966US7741053B2Processes for purification of recombinant proteinsSIGMA ALDRICH CO·Filed 2005·Granted Jun 22, 2010·4 cites·29 claims
- 4066US2009099040A1Degenerate oligonucleotides and their usesSIGMA ALDRICH CO·Filed 2007·Application pending·0 cites
- 4164US7794674B2Consolidated vacuum sublimation moduleSIGMA ALDRICH CO·Filed 2007·Granted Sep 14, 2010·2 cites·19 claims
- 4264US6379903B1Purification of recombinant proteins fused to multiple epitopesSIGMA ALDRICH CO·Filed 1999·Granted Apr 30, 2002·14 cites·43 claims
- 4363US7098326B2Methods for the integrated synthesis and purification of oligonucleotidesSIGMA ALDRICH CO·Filed 2003·Granted Aug 29, 2006·1 cites·22 claims
- 4462US7709612B2Metal chelating compositions for protein purification, detection or bindingSIGMA ALDRICH CO·Filed 2006·Granted May 4, 2010·1 cites·17 claims
- 4562US7329515B2Solid support for the synthesis of 3′-amino oligonucleotidesSIGMA ALDRICH CO·Filed 2004·Granted Feb 12, 2008·1 cites·28 claims
- 4662US7077017B2Container with a frangible sealSIGMA ALDRICH CO·Filed 2005·Granted Jul 18, 2006·3 cites·18 claims
- 4762US6902914B2Recombinant DNA processes using a dNTP mixture containing modified nucleotidesSIGMA ALDRICH CO·Filed 2001·Granted Jun 7, 2005·1 cites·66 claims
- 4862US5945292AMethod of identifying cells with polypeptide surface markerSIGMA ALDRICH CO·Filed 1997·Granted Aug 31, 1999·13 cites·10 claims
- 4962US2008044883A1Methods and Compositions for Amplification of DNASIGMA ALDRICH CO·Filed 2007·Application pending·0 cites
- 5060US5985582AThrombin-based assay for antithrombin IIISIGMA ALDRICH CO·Filed 1997·Granted Nov 16, 1999·30 cites·32 claims
Showing the top 50 of 139 patent records by PatentIndex Score.
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